diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 8c0a670ad..cff2b5ece 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -785,4 +785,7 @@
     <string name="pref_chart_heartrate_color_red">红</string>
     <string name="pref_chart_heartrate_color_orange">橙</string>
     <string name="pref_title_chart_heartrate_color">心率颜色</string>
+    <string name="pref_title_chart_sleep_rolling_24_hour">睡眠范围</string>
+    <string name="pref_chart_sleep_rolling_24_on">过去 24 小时</string>
+    <string name="pref_chart_sleep_rolling_24_off">中午到中午</string>
 </resources>
\ No newline at end of file