diff --git a/problems/0040.组合总和II.md b/problems/0040.组合总和II.md
index be72d903..1dd02b69 100644
--- a/problems/0040.组合总和II.md
+++ b/problems/0040.组合总和II.md
@@ -384,7 +384,7 @@ class Solution:
         return result
 
 ```
-回溯+去重（使用used）
+回溯 使用used
 ```python
 class Solution: