diff --git a/frontend/src/lang/zh.js b/frontend/src/lang/zh.js
index 04668b3..ecbdd4f 100644
--- a/frontend/src/lang/zh.js
+++ b/frontend/src/lang/zh.js
@@ -186,4 +186,5 @@ export default {
   'Please go to profile page to add money receiving method':
     '请于个人资料页添加收款方式',
   'Log out': '登出',
+  'day(s)': '天'
 }