diff --git a/README.md b/README.md
index 0f352e71..f33e5f63 100644
--- a/README.md
+++ b/README.md
@@ -24,15 +24,19 @@
 ## Preview
 
 <div align="center">
+  Home page:
   <a href="https://github.com/troyeguo/koodo-reader/releases/latest">
     <img src="https://i.loli.net/2021/08/08/I37WPYFJcC1jltn.png" >
   </a>
+  Primary menu:
   <a href="https://github.com/troyeguo/koodo-reader/releases/latest">
     <img src="https://i.loli.net/2021/08/08/LeEN9gnOvFmfVWA.png" >
   </a>
+  Annotations:
   <a href="https://github.com/troyeguo/koodo-reader/releases/latest">
     <img src="https://i.loli.net/2021/08/08/G7WvUQFTrEpSCKg.png" >
   </a>
+  Dark mode and theme color:
   <a href="https://github.com/troyeguo/koodo-reader/releases/latest">
     <img src="https://i.loli.net/2021/08/08/ynqUNpX93xZefdw.png" >
   </a>
diff --git a/README_cn.md b/README_cn.md
index a13c2010..00f107e7 100644
--- a/README_cn.md
+++ b/README_cn.md
@@ -26,15 +26,19 @@
 ## 预览
 
 <div align="center">
+  主页：
   <a href="https://github.com/troyeguo/koodo-reader/releases/latest">
     <img src="https://i.loli.net/2021/08/08/I37WPYFJcC1jltn.png" >
   </a>
+  阅读菜单：
   <a href="https://github.com/troyeguo/koodo-reader/releases/latest">
     <img src="https://i.loli.net/2021/08/08/LeEN9gnOvFmfVWA.png" >
   </a>
+  批注选项：
   <a href="https://github.com/troyeguo/koodo-reader/releases/latest">
     <img src="https://i.loli.net/2021/08/08/G7WvUQFTrEpSCKg.png" >
   </a>
+  黑夜模式和主题色：
   <a href="https://github.com/troyeguo/koodo-reader/releases/latest">
     <img src="https://i.loli.net/2021/08/08/ynqUNpX93xZefdw.png" >
   </a>