Merge pull request #39495 from kinzhi/kinzhi247

[zh-cn]SYNC  labels.md

Author: k8s-ci-robot

content/zh-cn/docs/concepts/overview/working-with-objects/labels.md

@@ -373,9 +373,9 @@ kubectl get pods -l 'environment in (production, qa)'
 ```
 
 <!--
-or restricting negative matching via _exists_ operator:
+or restricting negative matching via _notin_ operator:
 -->
-或者通过**exists**运算符限制不匹配：
+或者通过**notin**运算符限制不匹配：
 
 ```shell
 kubectl get pods -l 'environment,environment notin (frontend)'