diff --git a/problems/0151.翻转字符串里的单词.md b/problems/0151.翻转字符串里的单词.md
index b82204fa..a12d8f76 100644
--- a/problems/0151.翻转字符串里的单词.md
+++ b/problems/0151.翻转字符串里的单词.md
@@ -150,7 +150,7 @@ void removeExtraSpaces(string& s) {//去除所有空格并在相邻单词之间
 代码如下：
 
 ```CPP
-// 反转字符串s中左闭又闭的区间[start, end]
+// 反转字符串s中左闭右闭的区间[start, end]
 void reverse(string& s, int start, int end) {
     for (int i = start, j = end; i < j; i++, j--) {
         swap(s[i], s[j]);
@@ -163,7 +163,7 @@ void reverse(string& s, int start, int end) {
 ```CPP
 class Solution {
 public:
-    void reverse(string& s, int start, int end){ //翻转，区间写法：左闭又闭 []
+    void reverse(string& s, int start, int end){ //翻转，区间写法：左闭右闭 []
         for (int i = start, j = end; i < j; i++, j--) {
             swap(s[i], s[j]);
         }