diff --git a/problems/面试题 02.07. 解法更新.md b/problems/面试题 02.07. 解法更新.md
index 119f875c..6115d02e 100644
--- a/problems/面试题 02.07. 解法更新.md	
+++ b/problems/面试题 02.07. 解法更新.md	
@@ -28,7 +28,7 @@ public:
             if(pb == nullptr){
                 pb = headA;
             }
-            //pa == pb时，返回相交起始节点
+            //pa与pb相等时，返回相交起始节点
             if(pa == pb){
                 return pa;
             }