diff --git a/27. 消除非检查警告.md b/27. 消除非检查警告.md
index f2b31b5..2ec7976 100644
--- a/27. 消除非检查警告.md	
+++ b/27. 消除非检查警告.md	
@@ -8,7 +8,7 @@
 Set<Lark> exaltation = new HashSet();
 ```
 
-编译器会提醒你你做错了什么：
+　　编译器会提醒你你做错了什么：
 
 ```Java
 Venery.java:4: warning: [unchecked] unchecked conversion