diff --git a/src/components/article.tsx b/src/components/article.tsx
index 0ea69d9..3b3929f 100644
--- a/src/components/article.tsx
+++ b/src/components/article.tsx
@@ -1,4 +1,5 @@
 import * as React from "react"
+import intl = require("react-intl-universal")
 import { renderToString } from "react-dom/server"
 import { RSSItem } from "../scripts/models/item"
 import { openExternal } from "../scripts/utils"
@@ -11,6 +12,7 @@ const FONT_SIZE_OPTIONS = [12, 13, 14, 15, 16, 17, 18, 19, 20]
 type ArticleProps = {
     item: RSSItem
     source: RSSSource
+    locale: string
     dismiss: () => void
     toggleHasRead: (item: RSSItem) => void
     toggleStarred: (item: RSSItem) => void
@@ -57,13 +59,13 @@ class Article extends React.Component<ArticleProps, ArticleState> {
         items: [
             {
                 key: "openInBrowser",
-                text: "在浏览器中打开",
+                text: intl.get("openExternal"),
                 iconProps: {iconName: "NavigateExternalInline"},
                 onClick: this.openInBrowser
             },
             {
                 key: "toggleHidden",
-                text:　this.props.item.hidden ? "取消隐藏" : "隐藏文章",
+                text:　this.props.item.hidden ? intl.get("article.unhide") : intl.get("article.hide"),
                 onClick: () => { this.props.toggleHidden(this.props.item) }
             }
         ]
@@ -128,7 +130,7 @@ class Article extends React.Component<ArticleProps, ArticleState> {
 
     articleView = () => "article/article.html?h=" + window.btoa(encodeURIComponent(renderToString(<>
         <p className="title">{this.props.item.title}</p>
-        <p className="date">{this.props.item.date.toLocaleString("zh-cn", {hour12: false})}</p>
+        <p className="date">{this.props.item.date.toLocaleString(this.props.locale, {hour12: !this.props.locale.startsWith("zh")})}</p>
         <article dangerouslySetInnerHTML={{__html: this.props.item.content}}></article>
     </>))) + `&s=${this.state.fontSize}&u=${this.props.item.link}&d=${Number(document.body.classList.contains("dark"))}`
     
@@ -144,35 +146,35 @@ class Article extends React.Component<ArticleProps, ArticleState> {
                         </span>
                     </Stack.Item>
                     <CommandBarButton
-                        title={this.props.item.hasRead ? "标为未读" : "标为已读"}
+                        title={this.props.item.hasRead ? intl.get("article.markUnread") : intl.get("article.markRead")}
                         iconProps={this.props.item.hasRead 
                             ? {iconName: "StatusCircleRing"}
                             : {iconName: "RadioBtnOn", style: {fontSize: 14, textAlign: "center"}}}
                         onClick={() => this.props.toggleHasRead(this.props.item)} />
                     <CommandBarButton
-                        title={this.props.item.starred ? "取消星标" : "标为星标"}
+                        title={this.props.item.starred ? intl.get("article.unstar") : intl.get("article.star")}
                         iconProps={{iconName: this.props.item.starred ? "FavoriteStarFill" : "FavoriteStar"}}
                         onClick={() => this.props.toggleStarred(this.props.item)} />
                     <CommandBarButton
-                        title="字体大小"
+                        title={intl.get("article.fontSize")}
                         disabled={this.state.loadWebpage}
                         iconProps={{iconName: "FontSize"}}
                         menuIconProps={{style: {display: "none"}}}
                         menuProps={this.fontMenuProps()} />
                     <CommandBarButton
-                        title="加载网页"
+                        title={intl.get("article.loadWebpage")}
                         className={this.state.loadWebpage ? "active" : ""}
                         iconProps={{iconName: "Globe"}} 
                         onClick={this.toggleWebpage} />
                     <CommandBarButton
-                        title="更多"
+                        title={intl.get("more")}
                         iconProps={{iconName: "More"}}
                         menuIconProps={{style: {display: "none"}}}
                         menuProps={this.moreMenuProps()} />
                 </Stack>
                 <Stack horizontal horizontalAlign="end" style={{width: 112}}>
                     <CommandBarButton
-                        title="关闭"
+                        title={intl.get("close")}
                         iconProps={{iconName: "BackToWindow"}}
                         onClick={this.props.dismiss} />
                 </Stack>  
diff --git a/src/components/context-menu.tsx b/src/components/context-menu.tsx
index c99937e..0836725 100644
--- a/src/components/context-menu.tsx
+++ b/src/components/context-menu.tsx
@@ -1,4 +1,5 @@
 import * as React from "react"
+import intl = require("react-intl-universal")
 import { clipboard } from "electron"
 import { openExternal, cutText, googleSearch } from "../scripts/utils"
 import { ContextualMenu, IContextualMenuItem, ContextualMenuItemType, DirectionalHint } from "office-ui-fabric-react/lib/ContextualMenu"
@@ -34,7 +35,7 @@ export class ContextMenu extends React.Component<ContextMenuProps> {
             case ContextMenuType.Item: return [
                 {
                     key: "showItem",
-                    text: "阅读",
+                    text: intl.get("context.read"),
                     iconProps: { iconName: "TextDocument" },
                     onClick: () => {
                         this.props.markRead(this.props.item)
@@ -43,7 +44,7 @@ export class ContextMenu extends React.Component<ContextMenuProps> {
                 },
                 {
                     key: "openInBrowser",
-                    text: "在浏览器中打开",
+                    text: intl.get("openExternal"),
                     iconProps: { iconName: "NavigateExternalInline" },
                     onClick: () => {
                         this.props.markRead(this.props.item)
@@ -53,25 +54,25 @@ export class ContextMenu extends React.Component<ContextMenuProps> {
                 this.props.item.hasRead
                 ? {
                     key: "markAsUnread",
-                    text: "标为未读",
+                    text: intl.get("article.markUnread"),
                     iconProps: { iconName: "RadioBtnOn", style: { fontSize: 14, textAlign: "center" } },
                     onClick: () => { this.props.markUnread(this.props.item) }
                 }
                 : {
                     key: "markAsRead",
-                    text: "标为已读",
+                    text: intl.get("article.markRead"),
                     iconProps: { iconName: "StatusCircleRing" },
                     onClick: () => { this.props.markRead(this.props.item) }
                 },
                 {
                     key: "toggleStarred",
-                    text:　this.props.item.starred ? "取消星标" : "标为星标",
+                    text:　this.props.item.starred ? intl.get("article.unstar") : intl.get("article.star"),
                     iconProps: { iconName: this.props.item.starred ? "FavoriteStar" : "FavoriteStarFill" },
                     onClick: () => { this.props.toggleStarred(this.props.item) }
                 },
                 {
                     key: "toggleHidden",
-                    text:　this.props.item.hidden ? "取消隐藏" : "隐藏文章",
+                    text:　this.props.item.hidden ? intl.get("article.unhide") : intl.get("article.hide"),
                     onClick: () => { this.props.toggleHidden(this.props.item) }
                 },
                 {
@@ -80,25 +81,25 @@ export class ContextMenu extends React.Component<ContextMenuProps> {
                 },
                 {
                     key: "copyTitle",
-                    text: "复制标题",
+                    text: intl.get("context.copyTitle"),
                     onClick: () => { clipboard.writeText(this.props.item.title) }
                 },
                 {
                     key: "copyURL",
-                    text: "复制链接",
+                    text: intl.get("context.copyURL"),
                     onClick: () => { clipboard.writeText(this.props.item.link) }
                 }
             ]
             case ContextMenuType.Text: return [
                 {
                     key: "copyText",
-                    text: "复制",
+                    text: intl.get("context.copy"),
                     iconProps: { iconName: "Copy" },
                     onClick: () => { clipboard.writeText(this.props.text) }
                 },
                 {
                     key: "searchText",
-                    text: `使用Google搜索“${cutText(this.props.text, 15)}”`,
+                    text: intl.get("context.search", { text: cutText(this.props.text, 15) }),
                     iconProps: { iconName: "Search" },
                     onClick: () => { googleSearch(this.props.text) }
                 }
@@ -108,12 +109,12 @@ export class ContextMenu extends React.Component<ContextMenuProps> {
                     key: "section_1",
                     itemType: ContextualMenuItemType.Section,
                     sectionProps: {
-                        title: "视图",
+                        title: intl.get("context.view"),
                         bottomDivider: true,
                         items: [
                             {
                                 key: "cardView",
-                                text: "卡片视图",
+                                text: intl.get("context.cardView"),
                                 iconProps: { iconName: "GridViewMedium" },
                                 canCheck: true,
                                 checked: this.props.viewType === ViewType.Cards,
@@ -121,7 +122,7 @@ export class ContextMenu extends React.Component<ContextMenuProps> {
                             },
                             {
                                 key: "listView",
-                                text: "列表视图",
+                                text: intl.get("context.listView"),
                                 iconProps: { iconName: "BacklogList" },
                                 canCheck: true,
                                 checked: this.props.viewType === ViewType.List,
@@ -134,12 +135,12 @@ export class ContextMenu extends React.Component<ContextMenuProps> {
                     key: "section_2",
                     itemType: ContextualMenuItemType.Section,
                     sectionProps: {
-                        title: "筛选",
+                        title: intl.get("context.filter"),
                         bottomDivider: true,
                         items: [
                             {
                                 key: "allArticles",
-                                text: "全部文章",
+                                text: intl.get("allArticles"),
                                 iconProps: { iconName: "ClearFilter" },
                                 canCheck: true,
                                 checked: (this.props.filter & ~FeedFilter.ShowHidden) == FeedFilter.Default,
@@ -147,7 +148,7 @@ export class ContextMenu extends React.Component<ContextMenuProps> {
                             },
                             {
                                 key: "unreadOnly",
-                                text: "仅未读文章",
+                                text: intl.get("context.unreadOnly"),
                                 iconProps: { iconName: "RadioBtnOn", style: { fontSize: 14, textAlign: "center" } },
                                 canCheck: true,
                                 checked: (this.props.filter & ~FeedFilter.ShowHidden) == FeedFilter.UnreadOnly,
@@ -155,7 +156,7 @@ export class ContextMenu extends React.Component<ContextMenuProps> {
                             },
                             {
                                 key: "starredOnly",
-                                text: "仅星标文章",
+                                text: intl.get("context.starredOnly"),
                                 iconProps: { iconName: "FavoriteStarFill" },
                                 canCheck: true,
                                 checked: (this.props.filter & ~FeedFilter.ShowHidden) == FeedFilter.StarredOnly,
@@ -166,7 +167,7 @@ export class ContextMenu extends React.Component<ContextMenuProps> {
                 },
                 {
                     key: "showHidden",
-                    text: "显示隐藏文章",
+                    text: intl.get("context.showHidden"),
                     canCheck: true,
                     checked: Boolean(this.props.filter & FeedFilter.ShowHidden),
                     onClick: () => this.props.toggleFilter(FeedFilter.ShowHidden)
diff --git a/src/components/feeds/cards-feed.tsx b/src/components/feeds/cards-feed.tsx
index 916025a..292ce82 100644
--- a/src/components/feeds/cards-feed.tsx
+++ b/src/components/feeds/cards-feed.tsx
@@ -1,5 +1,6 @@
 import * as React from "react"
-import { Feed, FeedProps } from "./feed"
+import intl = require("react-intl-universal")
+import { FeedProps } from "./feed"
 import DefaultCard from "../cards/default-card"
 import { PrimaryButton } from 'office-ui-fabric-react';
 
@@ -47,7 +48,7 @@ class CardsFeed extends React.Component<FeedProps> {
                 {
                     (this.props.feed.loaded && !this.props.feed.allLoaded)
                     ? <div className="load-more-wrapper"><PrimaryButton 
-                        text="加载更多" 
+                        text={intl.get("loadMore")}
                         disabled={this.props.feed.loading}
                         onClick={() => this.props.loadMore(this.props.feed)} /></div>
                     : null
diff --git a/src/components/feeds/list-feed.tsx b/src/components/feeds/list-feed.tsx
index d737305..23baca7 100644
--- a/src/components/feeds/list-feed.tsx
+++ b/src/components/feeds/list-feed.tsx
@@ -1,4 +1,5 @@
 import * as React from "react"
+import intl = require("react-intl-universal")
 import { FeedProps } from "./feed"
 import { DefaultButton } from 'office-ui-fabric-react';
 import ListCard from "../cards/list-card";
@@ -22,7 +23,7 @@ class ListFeed extends React.Component<FeedProps> {
                 {
                     (this.props.feed.loaded && !this.props.feed.allLoaded)
                     ? <div className="load-more-wrapper"><DefaultButton 
-                        text="加载更多" 
+                        text={intl.get("loadMore")} 
                         disabled={this.props.feed.loading}
                         onClick={() => this.props.loadMore(this.props.feed)} /></div>
                     : null
diff --git a/src/components/log-menu.tsx b/src/components/log-menu.tsx
index 4f232ec..c252e34 100644
--- a/src/components/log-menu.tsx
+++ b/src/components/log-menu.tsx
@@ -1,4 +1,5 @@
 import * as React from "react"
+import intl = require("react-intl-universal")
 import { Callout, ActivityItem, Icon, DirectionalHint } from "@fluentui/react"
 import { AppLog, AppLogType } from "../scripts/models/app"
 import Time from "./utils/time"
@@ -29,7 +30,7 @@ class LogMenu extends React.Component<LogMenuProps> {
                 onDismiss={() => this.props.close()}
             >
                 { this.props.logs.length == 0 
-                ? <p style={{ textAlign: "center" }}>无消息</p>
+                ? <p style={{ textAlign: "center" }}>{intl.get("log.empty")}</p>
                 : this.activityItems().map((item => (
                     <ActivityItem {...item} key={item.key} style={{ margin: 12 }} />
                 ))) }
diff --git a/src/components/menu.tsx b/src/components/menu.tsx
index 2d58b8a..95471f3 100644
--- a/src/components/menu.tsx
+++ b/src/components/menu.tsx
@@ -1,4 +1,5 @@
 import * as React from "react"
+import intl = require("react-intl-universal")
 import { Icon } from "@fluentui/react/lib/Icon"
 import { Nav, INavLink, INavLinkGroup } from "office-ui-fabric-react/lib/Nav"
 import { SourceGroup } from "../scripts/models/group"
@@ -23,13 +24,13 @@ export class Menu extends React.Component<MenuProps> {
         {
             links: [
                 {
-                    name: "搜索",
+                    name: intl.get("search"),
                     key: "search",
                     icon: "Search",
                     url: null
                 },
                 {
-                    name: "全部文章",
+                    name: intl.get("allArticles"),
                     key: ALL,
                     icon: "TextDocument",
                     onClick: this.props.allArticles,
@@ -78,14 +79,14 @@ export class Menu extends React.Component<MenuProps> {
             <div className="menu-container" onClick={this.props.toggleMenu} style={{display: this.props.display ? "block" : "none"}}>
                 <div className="menu" onClick={(e) => e.stopPropagation()}>
                     <div className="btn-group">
-                        <a className="btn hide-wide" title="关闭菜单" onClick={this.props.toggleMenu}><Icon iconName="Back" /></a>
-                        <a className="btn inline-block-wide" title="关闭菜单" onClick={this.props.toggleMenu}><Icon iconName="GlobalNavButton" /></a>
+                        <a className="btn hide-wide" title={intl.get("menu.close")} onClick={this.props.toggleMenu}><Icon iconName="Back" /></a>
+                        <a className="btn inline-block-wide" title={intl.get("menu.close")} onClick={this.props.toggleMenu}><Icon iconName="GlobalNavButton" /></a>
                     </div>
                     <div className="nav-wrapper">
                         <Nav 
                             groups={this.getItems()} 
                             selectedKey={this.props.selected} />
-                        <p className={"subs-header " + AnimationClassNames.slideDownIn10}>订阅源</p>
+                        <p className={"subs-header " + AnimationClassNames.slideDownIn10}>{intl.get("menu.subscriptions")}</p>
                         <Nav 
                             selectedKey={this.props.selected}
                             groups={this.getGroups()} />
diff --git a/src/components/nav.tsx b/src/components/nav.tsx
index 0a1cabb..2c3aab3 100644
--- a/src/components/nav.tsx
+++ b/src/components/nav.tsx
@@ -1,4 +1,5 @@
 import * as React from "react"
+import intl = require("react-intl-universal")
 import { remote } from "electron"
 import { Icon } from "@fluentui/react/lib/Icon"
 import { AppState } from "../scripts/models/app"
@@ -76,25 +77,59 @@ class Nav extends React.Component<NavProps, NavState> {
         return (
             <nav className={this.hideButtons() + this.menuOn() + this.itemOn()}>
                 <div className="btn-group">
-                    <a className="btn hide-wide" title="菜单" onClick={this.props.menu}><Icon iconName="GlobalNavButton" /></a>
+                    <a className="btn hide-wide" 
+                        title={intl.get("nav.menu")} 
+                        onClick={this.props.menu}>
+                        <Icon iconName="GlobalNavButton" />
+                    </a>
                 </div>
                 <span className="title">{this.props.state.title}</span>
                 <div className="btn-group" style={{float:"right"}}>
-                    <a className={"btn"+this.fetching()} onClick={this.fetch} title="刷新"><Icon iconName="Refresh" /></a>
-                    <a className="btn" title="全部标为已读"><Icon iconName="InboxCheck" /></a>
-                    <a className="btn" id="log-toggle" title="消息" onClick={this.props.logs}>
+                    <a className={"btn"+this.fetching()} 
+                        onClick={this.fetch} 
+                        title={intl.get("nav.refresh")}>
+                        <Icon iconName="Refresh" />
+                    </a>
+                    <a className="btn" title={intl.get("nav.markAllRead")}>
+                        <Icon iconName="InboxCheck" />
+                    </a>
+                    <a className="btn" 
+                        id="log-toggle" 
+                        title={intl.get("nav.notifications")} 
+                        onClick={this.props.logs}>
                         {this.props.state.logMenu.notify ? <Icon iconName="RingerSolid" /> : <Icon iconName="Ringer" />}
                     </a>
-                    <a className="btn" id="view-toggle" title="视图" onClick={this.props.views} 
-                        onMouseDown={e => {if (this.props.state.contextMenu.event === "#view-toggle") e.stopPropagation()}}>
+                    <a className="btn" 
+                        id="view-toggle" 
+                        title={intl.get("nav.view")}
+                        onClick={this.props.views} 
+                        onMouseDown={e => {
+                            if (this.props.state.contextMenu.event === "#view-toggle") e.stopPropagation()}}>
                             <Icon iconName="View" /></a>
-                    <a className="btn" title="选项" onClick={this.props.settings}><Icon iconName="Settings" /></a>
-                    <span className="seperator"></span>
-                    <a className="btn system" title="最小化" onClick={this.minimize} style={{fontSize: 12}}><Icon iconName="Remove" /></a>
-                    <a className="btn system" title="最大化" onClick={this.maximize}>
-                        {this.state.maximized ? <Icon iconName="ChromeRestore" style={{fontSize: 11}} /> :<Icon iconName="Checkbox" style={{fontSize: 10}} />}
+                    <a className="btn" 
+                        title={intl.get("nav.settings")}
+                        onClick={this.props.settings}>
+                        <Icon iconName="Settings" />
+                    </a>
+                    <span className="seperator"></span>
+                    <a className="btn system" 
+                        title={intl.get("nav.minimize")} 
+                        onClick={this.minimize} 
+                        style={{fontSize: 12}}>
+                        <Icon iconName="Remove" />
+                    </a>
+                    <a className="btn system" 
+                        title={intl.get("nav.maximize")} 
+                        onClick={this.maximize}>
+                        {this.state.maximized 
+                            ? <Icon iconName="ChromeRestore" style={{fontSize: 11}} /> 
+                            : <Icon iconName="Checkbox" style={{fontSize: 10}} />}
+                    </a>
+                    <a className="btn system close" 
+                        title={intl.get("close")}
+                        onClick={this.close}>
+                        <Icon iconName="Cancel" />
                     </a>
-                    <a className="btn system close" title="关闭" onClick={this.close}><Icon iconName="Cancel" /></a>
                 </div>
                 {!this.canFetch() && 
                     <ProgressIndicator
diff --git a/src/components/settings.tsx b/src/components/settings.tsx
index 04e1111..0622c7f 100644
--- a/src/components/settings.tsx
+++ b/src/components/settings.tsx
@@ -1,4 +1,5 @@
 import * as React from "react"
+import intl = require("react-intl-universal")
 import { Icon } from "@fluentui/react/lib/Icon"
 import { AnimationClassNames } from "@fluentui/react/lib/Styling"
 import AboutTab from "./settings/about"
@@ -23,24 +24,24 @@ class Settings extends React.Component<SettingsProps> {
         <div className="settings-container">
             <div className={"settings " + AnimationClassNames.slideUpIn20}>
                 {this.props.blocked && <div className="loading">
-                    <Spinner label="正在更新订阅源，请稍候…" />
+                    <Spinner label={intl.get("settings.fetching")} />
                 </div>}
                 <div className="btn-group" style={{position: "absolute", top: 6, left: -64}}>
-                    <a className={"btn" + (this.props.exitting ? " disabled" : "")} title="退出设置" onClick={this.props.close}>
+                    <a className={"btn" + (this.props.exitting ? " disabled" : "")} title={intl.get("settings.exit")} onClick={this.props.close}>
                         <Icon iconName="Back" />
                     </a>
                 </div>
                 <Pivot>
-                    <PivotItem headerText="订阅源" itemIcon="Source">
+                    <PivotItem headerText={intl.get("settings.sources")} itemIcon="Source">
                         <SourcesTabContainer />
                     </PivotItem>
-                    <PivotItem headerText="分组与排序" itemIcon="GroupList">
+                    <PivotItem headerText={intl.get("settings.grouping")} itemIcon="GroupList">
                         <GroupsTabContainer />
                     </PivotItem>
-                    <PivotItem headerText="应用选项" itemIcon="Settings">
+                    <PivotItem headerText={intl.get("settings.app")} itemIcon="Settings">
                         <AppTabContainer />
                     </PivotItem>
-                    <PivotItem headerText="关于" itemIcon="Info">
+                    <PivotItem headerText={intl.get("settings.about")} itemIcon="Info">
                         <AboutTab />
                     </PivotItem>
                 </Pivot>
diff --git a/src/components/settings/about.tsx b/src/components/settings/about.tsx
index 4e760df..acb476e 100644
--- a/src/components/settings/about.tsx
+++ b/src/components/settings/about.tsx
@@ -1,4 +1,5 @@
 import * as React from "react"
+import intl = require("react-intl-universal")
 import { Stack, Link } from "@fluentui/react"
 import { openExternal } from "../../scripts/utils"
 
@@ -8,11 +9,11 @@ class AboutTab extends React.Component {
             <Stack className="settings-about" horizontalAlign="center">
                 <img src="logo.svg" style={{width: 120, height: 120}} />
                 <h3>Fluent Reader</h3>
-                <small>版本 0.1.0</small>
+                <small>{intl.get("settings.version")} 0.1.0</small>
                 <p className="settings-hint">Copyright © 2020 Haoyuan Liu. All rights reserved.</p>
-                <Stack horizontal horizontalAlign="center" tokens={{childrenGap: 8}}>
-                    <small><Link onClick={() => openExternal("https://github.com/yang991178/fluent-reader")}>开源项目</Link></small>
-                    <small><Link onClick={() => openExternal("https://github.com/yang991178/fluent-reader/issues")}>反馈</Link></small>
+                <Stack horizontal horizontalAlign="center" tokens={{childrenGap: 12}}>
+                    <small><Link onClick={() => openExternal("https://github.com/yang991178/fluent-reader")}>{intl.get("settings.openSource")}</Link></small>
+                    <small><Link onClick={() => openExternal("https://github.com/yang991178/fluent-reader/issues")}>{intl.get("settings.feedback")}</Link></small>
                 </Stack>
             </Stack>
         </div>
diff --git a/src/components/settings/groups.tsx b/src/components/settings/groups.tsx
index 7090697..5f4b7e2 100644
--- a/src/components/settings/groups.tsx
+++ b/src/components/settings/groups.tsx
@@ -1,4 +1,5 @@
 import * as React from "react"
+import intl = require("react-intl-universal")
 import { SourceGroup } from "../../scripts/models/group"
 import { SourceState, RSSSource } from "../../scripts/models/source"
 import { IColumn, Selection, SelectionMode, DetailsList, Label, Stack,
@@ -69,22 +70,22 @@ class GroupsTab extends React.Component<GroupsTabProps, GroupsTabState> {
         })
     }
 
-    groupColumns: IColumn[] = [
+    groupColumns = (): IColumn[] => [
         {
             key: "type",
-            name: "类型",
+            name: intl.get("groups.type"),
             minWidth: 40,
             maxWidth: 40,
             data: "string",
             onRender: (g: SourceGroup) => <>
-                {g.isMultiple ? "分组" : "订阅源"}
+                {g.isMultiple ? intl.get("groups.group") : intl.get("groups.source")}
             </>
         },
         {
             key: "capacity",
-            name: "容量",
+            name: intl.get("groups.capacity"),
             minWidth: 40,
-            maxWidth: 40,
+            maxWidth: 60,
             data: "string",
             onRender: (g: SourceGroup) => <>
                 {g.isMultiple ? g.sids.length : ""}
@@ -92,7 +93,7 @@ class GroupsTab extends React.Component<GroupsTabProps, GroupsTabState> {
         },
         {
             key: "name",
-            name: "名称",
+            name: intl.get("name"),
             minWidth: 200,
             data: "string",
             isRowHeader: true,
@@ -105,7 +106,7 @@ class GroupsTab extends React.Component<GroupsTabProps, GroupsTabState> {
     sourceColumns: IColumn[] = [
         {
             key: "favicon",
-            name: "图标",
+            name: intl.get("icon"),
             fieldName: "name",
             isIconOnly: true,
             iconName: "ImagePixel",
@@ -117,7 +118,7 @@ class GroupsTab extends React.Component<GroupsTabProps, GroupsTabState> {
         },
         {
             key: "name",
-            name: "名称",
+            name: intl.get("name"),
             fieldName: "name",
             minWidth: 200,
             data: 'string',
@@ -252,11 +253,11 @@ class GroupsTab extends React.Component<GroupsTabProps, GroupsTabState> {
             <>
                 <Stack horizontal horizontalAlign="space-between" style={{height: 40}}>
                     <CommandBarButton 
-                        text="退出分组" 
+                        text={intl.get("groups.exitGroup")} 
                         iconProps={{iconName: "BackToWindow"}}
                         onClick={() => this.setState({manageGroup: false})} />
                     {this.state.selectedSources != null && <CommandBarButton 
-                        text="从分组删除订阅源" 
+                        text={intl.get("groups.deleteSource")} 
                         onClick={this.removeFromGroup}
                         iconProps={{iconName: "RemoveFromShoppingList", style: {color: "#d13438"}}} />}
                 </Stack>
@@ -272,18 +273,18 @@ class GroupsTab extends React.Component<GroupsTabProps, GroupsTabState> {
                         selectionMode={SelectionMode.multiple} />
                 </MarqueeSelection>
                 
-                <span className="settings-hint">拖拽订阅源以排序</span>
+                <span className="settings-hint">{intl.get("groups.sourceHint")}</span>
             </>}
             {(!this.state.manageGroup || !this.state.selectedGroup) 
             ?<>
                 <form onSubmit={this.createGroup}>
-                    <Label htmlFor="newGroupName">新建分组</Label>
+                    <Label htmlFor="newGroupName">{intl.get("groups.create")}</Label>
                     <Stack horizontal>
                         <Stack.Item grow>
                             <TextField 
-                                onGetErrorMessage={v => v.trim().length == 0 ? "名称不得为空" : ""} 
+                                onGetErrorMessage={v => v.trim().length == 0 ? intl.get("emptyName") : ""} 
                                 validateOnLoad={false} 
-                                placeholder="输入名称"
+                                placeholder={intl.get("groups.enterName")}
                                 value={this.state.newGroupName}
                                 id="newGroupName"
                                 name="newGroupName"
@@ -293,7 +294,7 @@ class GroupsTab extends React.Component<GroupsTabProps, GroupsTabState> {
                             <PrimaryButton 
                                 disabled={this.state.newGroupName.length == 0}
                                 type="sumbit"
-                                text="新建" />
+                                text={intl.get("create")} />
                         </Stack.Item>
                     </Stack>
                 </form>
@@ -301,7 +302,7 @@ class GroupsTab extends React.Component<GroupsTabProps, GroupsTabState> {
                 <DetailsList
                     compact={true}
                     items={this.props.groups} 
-                    columns={this.groupColumns}
+                    columns={this.groupColumns()}
                     setKey="selected"
                     onItemInvoked={this.manageGroup}
                     dragDropEvents={this.groupDragDropEvents}
@@ -311,13 +312,13 @@ class GroupsTab extends React.Component<GroupsTabProps, GroupsTabState> {
                 {this.state.selectedGroup 
                 ? ( this.state.selectedGroup.isMultiple 
                     ?<>
-                        <Label>选中分组</Label>
+                        <Label>{intl.get("groups.selectedGroup")}</Label>
                         <Stack horizontal>
                             <Stack.Item grow>
                                 <TextField
-                                    onGetErrorMessage={v => v.trim().length == 0 ? "名称不得为空" : ""}
+                                    onGetErrorMessage={v => v.trim().length == 0 ? intl.get("emptyName") : ""}
                                     validateOnLoad={false}
-                                    placeholder="分组名称"
+                                    placeholder={intl.get("groups.enterName")}
                                     value={this.state.editGroupName}
                                     name="editGroupName"
                                     onChange={this.handleInputChange} />
@@ -326,22 +327,22 @@ class GroupsTab extends React.Component<GroupsTabProps, GroupsTabState> {
                                 <DefaultButton
                                     disabled={this.state.editGroupName.length == 0}
                                     onClick={this.updateGroupName}
-                                    text="修改名称" />
+                                    text={intl.get("groups.editName")} />
                             </Stack.Item>
                             <Stack.Item>
                                 <DangerButton
                                     key={this.state.selectedGroup.index}
                                     onClick={this.deleteGroup}
-                                    text={`删除分组`} />
+                                    text={intl.get("groups.deleteGroup")} />
                             </Stack.Item>
                         </Stack>
                     </>
                     :<>
-                        <Label>选中订阅源</Label>
+                        <Label>{intl.get("groups.selectedSource")}</Label>
                         <Stack horizontal>
                             <Stack.Item grow>
                                 <Dropdown
-                                    placeholder="选择分组"
+                                    placeholder={intl.get("groups.chooseGroup")}
                                     selectedKey={this.state.dropdownIndex}
                                     options={this.dropdownOptions()}
                                     onChange={this.dropdownChange} />
@@ -350,12 +351,12 @@ class GroupsTab extends React.Component<GroupsTabProps, GroupsTabState> {
                                 <DefaultButton
                                     disabled={this.state.dropdownIndex === null}
                                     onClick={this.addToGroup}
-                                    text="添加至分组" />
+                                    text={intl.get("groups.addToGroup")} />
                             </Stack.Item>
                         </Stack>
                     </>
                 )
-                : <span className="settings-hint">双击分组以修改订阅源，可通过拖拽排序</span>
+                : <span className="settings-hint">{intl.get("groups.groupHint")}</span>
                 }
             </> : null}
         </div>
diff --git a/src/components/utils/danger-button.tsx b/src/components/utils/danger-button.tsx
index 8182c6b..1846aea 100644
--- a/src/components/utils/danger-button.tsx
+++ b/src/components/utils/danger-button.tsx
@@ -1,4 +1,5 @@
 import * as React from "react"
+import intl = require("react-intl-universal")
 import { PrimaryButton } from "@fluentui/react";
 
 class DangerButton extends PrimaryButton {
@@ -35,7 +36,7 @@ class DangerButton extends PrimaryButton {
             {...this.props} 
             className={this.props.className + " danger"}
             onClick={this.onClick}
-            text={this.state.confirming ? `确认${this.props.text}?` : this.props.text}
+            text={this.state.confirming ? intl.get("dangerButton", { action: this.props.text.toLowerCase() }) : this.props.text}
         >
             {this.props.children}
         </PrimaryButton>
diff --git a/src/containers/article-container.tsx b/src/containers/article-container.tsx
index b4a088f..73431ed 100644
--- a/src/containers/article-container.tsx
+++ b/src/containers/article-container.tsx
@@ -13,13 +13,15 @@ type ArticleContainerProps = {
 
 const getItem = (state: RootState, props: ArticleContainerProps) => state.items[props.itemId]
 const getSource = (state: RootState, props: ArticleContainerProps) => state.sources[state.items[props.itemId].source]
+const getLocale = (state: RootState) => state.app.locale
 
 const makeMapStateToProps = () => {
     return createSelector(
-        [getItem, getSource],
-        (item, source) => ({
+        [getItem, getSource, getLocale],
+        (item, source, locale) => ({
             item: item,
-            source: source
+            source: source,
+            locale: locale
         })
     )
 }
diff --git a/src/containers/settings/sources-container.tsx b/src/containers/settings/sources-container.tsx
index dbb81f1..b588b62 100644
--- a/src/containers/settings/sources-container.tsx
+++ b/src/containers/settings/sources-container.tsx
@@ -1,3 +1,4 @@
+import intl = require("react-intl-universal")
 import { remote } from "electron"
 import { connect } from "react-redux"
 import { createSelector } from "reselect"
@@ -30,7 +31,7 @@ const mapDispatchToProps = (dispatch: AppDispatch) => {
             let path = remote.dialog.showOpenDialogSync(
                 remote.getCurrentWindow(),
                 {
-                    filters: [{ name: "OPML文件", extensions: ["xml", "opml"] }],
+                    filters: [{ name: intl.get("sources.opmlFile"), extensions: ["xml", "opml"] }],
                     properties: ["openFile"]
                 }
             )
diff --git a/src/scripts/i18n/en-US.json b/src/scripts/i18n/en-US.json
index bb673ba..ddd2eb3 100644
--- a/src/scripts/i18n/en-US.json
+++ b/src/scripts/i18n/en-US.json
@@ -5,8 +5,68 @@
     "icon": "Icon",
     "name": "Name",
     "openExternal": "Open externally",
-    "emptyName": "This field cannot be empty",
+    "emptyName": "This field cannot be empty.",
     "followSystem": "Follow system",
+    "more": "More",
+    "close": "Close",
+    "search": "Search",
+    "loadMore": "Load more",
+    "dangerButton": "Confirm {action}?",
+    "log": {
+        "empty": "No notifications",
+        "fetchFailure": "Failed to load source \"{name}\".",
+        "fetchSuccess": "Successfully fetched {count, plural, =1 {# article} other {# articles}}."
+    },
+    "nav": {
+        "menu": "Menu",
+        "refresh": "Refresh",
+        "markAllRead": "Mark all as read",
+        "notifications": "Notifications",
+        "view": "View",
+        "settings": "Settings",
+        "minimize": "Minimize",
+        "maximize": "Maximize"
+    },
+    "menu": {
+        "close": "Close menu",
+        "subscriptions": "Subscriptions"
+    },
+    "article": {
+        "hide": "Hide article",
+        "unhide": "Unhide article",
+        "markRead": "Mark as read",
+        "markUnread": "Mark as unread",
+        "star": "Star",
+        "unstar": "Remove star",
+        "fontSize": "Font size",
+        "loadWebpage": "Load webpage"
+    },
+    "context": {
+        "read": "Read",
+        "copyTitle": "Copy title",
+        "copyURL": "Copy link",
+        "copy": "Copy",
+        "search": "Search \"{text}\" on Google",
+        "view": "View",
+        "cardView": "Card view",
+        "listView": "List view",
+        "filter": "Filtering",
+        "unreadOnly": "Unread only",
+        "starredOnly": "Starred only",
+        "showHidden": "Show hidden articles"
+    },
+    "settings": {
+        "name": "Settings",
+        "fetching": "Updating sources, please wait …",
+        "exit": "Exit settings",
+        "sources": "Sources",
+        "grouping": "Grouping",
+        "app": "Preferences",
+        "about": "About",
+        "version": "Version",
+        "openSource": "Open source",
+        "feedback": "Feedback"
+    },
     "sources": {
         "opmlFile": "OPML File",
         "name": "Source name",
@@ -20,9 +80,27 @@
         "loadWebpage": "Load webpage",
         "inputUrl": "Enter URL",
         "badUrl": "Invalid URL",
-        "deleteWarning": "The source and all saved articles will be removed",
+        "deleteWarning": "The source and all saved articles will be removed.",
         "selected": "Selected source"
     },
+    "groups": {
+        "type": "Type",
+        "group": "Group",
+        "source": "Source",
+        "capacity": "Capacity",
+        "exitGroup": "Back to groups",
+        "deleteSource": "Delete from group",
+        "sourceHint": "Drag and drop sources to reorder.",
+        "create": "Create group",
+        "selectedGroup": "Selected group",
+        "selectedSource": "Selected source",
+        "enterName": "Enter name",
+        "editName": "Edit name",
+        "deleteGroup": "Delete group",
+        "chooseGroup": "Select a group",
+        "addToGroup": "Add to ...",
+        "groupHint": "Double click on group to edit sources. Drag and drop to reorder."
+    },
     "app": {
         "language": "Display language",
         "theme": "Theme",
diff --git a/src/scripts/i18n/zh-CN.json b/src/scripts/i18n/zh-CN.json
index 1440230..4187b0d 100644
--- a/src/scripts/i18n/zh-CN.json
+++ b/src/scripts/i18n/zh-CN.json
@@ -7,6 +7,66 @@
     "openExternal": "在浏览器中打开",
     "emptyName": "名称不得为空",
     "followSystem": "跟随系统",
+    "more": "更多",
+    "close": "关闭",
+    "search": "搜索",
+    "loadMore": "加载更多",
+    "dangerButton": "确认{action}？",
+    "log": {
+        "empty": "无消息",
+        "fetchFailure": "无法加载订阅源“{name}”",
+        "fetchSuccess": "成功加载 {count} 篇文章"
+    },
+    "nav": {
+        "menu": "菜单",
+        "refresh": "刷新",
+        "markAllRead": "全部标为已读",
+        "notifications": "消息",
+        "view": "视图",
+        "settings": "选项",
+        "minimize": "最小化",
+        "maximize": "最大化"
+    },
+    "menu": {
+        "close": "关闭菜单",
+        "subscriptions": "订阅源"
+    },
+    "article": {
+        "hide": "隐藏文章",
+        "unhide": "取消隐藏",
+        "markRead": "标为已读",
+        "markUnread": "标为未读",
+        "star": "标为星标",
+        "unstar": "取消星标",
+        "fontSize": "字体大小",
+        "loadWebpage": "加载网页"
+    },
+    "context": {
+        "read": "阅读",
+        "copyTitle": "复制标题",
+        "copyURL": "复制链接",
+        "copy": "复制",
+        "search": "使用Google搜索“{text}”",
+        "view": "视图",
+        "cardView": "卡片视图",
+        "listView": "列表视图",
+        "filter": "筛选",
+        "unreadOnly": "仅未读文章",
+        "starredOnly": "仅星标文章",
+        "showHidden": "显示隐藏文章"
+    },
+    "settings": {
+        "name": "选项",
+        "fetching": "正在更新订阅源，请稍候…",
+        "exit": "退出选项",
+        "sources": "订阅源",
+        "grouping": "分组与排序",
+        "app": "应用偏好",
+        "about": "关于",
+        "version": "版本",
+        "openSource": "开源项目",
+        "feedback": "反馈"
+    },
     "sources": {
         "opmlFile": "OPML文件",
         "name": "订阅源名称",
@@ -23,6 +83,24 @@
         "deleteWarning": "这将移除此订阅源与所有已保存的文章",
         "selected": "选中订阅源"
     },
+    "groups": {
+        "type": "类型",
+        "group": "分组",
+        "source": "订阅源",
+        "capacity": "容量",
+        "exitGroup": "退出分组",
+        "deleteSource": "从分组删除订阅源",
+        "sourceHint": "拖拽订阅源以排序",
+        "create": "新建分组",
+        "selectedGroup": "选中分组",
+        "selectedSource": "选中订阅源",
+        "enterName": "输入名称",
+        "editName": "修改名称",
+        "deleteGroup": "删除分组",
+        "chooseGroup": "选择分组",
+        "addToGroup": "添加至分组",
+        "groupHint": "双击分组以修改订阅源，可通过拖拽排序"
+    },
     "app": {
         "language": "界面语言",
         "theme": "应用主题",
diff --git a/src/scripts/models/app.ts b/src/scripts/models/app.ts
index 5186756..e2acb7e 100644
--- a/src/scripts/models/app.ts
+++ b/src/scripts/models/app.ts
@@ -39,7 +39,7 @@ export class AppState {
     fetchingTotal = 0
     menu = getWindowBreakpoint()
     menuKey = ALL
-    title = "全部文章"
+    title = ""
     settings = {
         display: false,
         changed: false,
@@ -163,21 +163,27 @@ export const initIntlDone = (locale: string): InitIntlAction => ({
     locale: locale
 })
 
-export function initIntl(): AppThunk {
+export function initIntl(): AppThunk<Promise<void>> {
     return (dispatch) => {
         let locale = getCurrentLocale()
-        intl.init({
+        return intl.init({
             currentLocale: locale,
             locales: locales,
             fallbackLocale: "zh-CN"
-        }).then(() => dispatch(initIntlDone(locale)))
+        }).then(() => { dispatch(initIntlDone(locale)) })
     }
 }
 
 export function initApp(): AppThunk {
     return (dispatch) => {
-        dispatch(initSources()).then(() => dispatch(initFeeds())).then(() => dispatch(fetchItems()))
-        dispatch(initIntl())
+        dispatch(initIntl()).then(() =>
+            dispatch(initSources())
+        ).then(() => 
+            dispatch(initFeeds())
+        ).then(() => {
+            dispatch(selectAllArticles())
+            dispatch(fetchItems())
+        })
     }
 }
 
@@ -257,7 +263,7 @@ export function appReducer(
                         notify: !state.logMenu.display,
                         logs: [...state.logMenu.logs, new AppLog(
                             AppLogType.Failure,
-                            `无法加载订阅源“${action.errSource.name}”`,
+                            intl.get("log.fetchFailure", { name: action.errSource.name }),
                             String(action.err)
                         )]
                     }
@@ -270,7 +276,7 @@ export function appReducer(
                         ...state.logMenu,
                         logs: [...state.logMenu.logs, new AppLog(
                             AppLogType.Info,
-                            `成功加载 ${action.items.length} 篇文章`
+                            intl.get("log.fetchSuccess", { count: action.items.length })
                         )]
                     }
                 }
@@ -286,7 +292,7 @@ export function appReducer(
                     ...state,
                     menu: state.menu && action.keepMenu,
                     menuKey: ALL,
-                    title: "全部文章"
+                    title: intl.get("allArticles")
                 }
                 case PageType.Sources: return {
                     ...state,