[zh] synchronize translate operator.md

Author: shuaijinchao

content/zh/docs/concepts/extend-kubernetes/operator.md

@@ -54,9 +54,7 @@ built-in automation from the core of Kubernetes. You can use Kubernetes
 to automate deploying and running workloads, *and* you can automate how
 Kubernetes does that.
 
-Kubernetes' {{< glossary_tooltip text="controllers" term_id="controller" >}}
-concept lets you extend the cluster's behaviour without modifying the code
-of Kubernetes itself.
+Kubernetes' {{< glossary_tooltip text="operator pattern" term_id="operator-pattern" >}} concept lets you extend the cluster's behaviour without modifying the code of Kubernetes itself by linking {{< glossary_tooltip text="controllers" term_id="controller" >}} to one or more custom resources.
 Operators are clients of the Kubernetes API that act as controllers for
 a [Custom Resource](/docs/concepts/extend-kubernetes/api-extension/custom-resources/).
 -->
@@ -65,10 +63,11 @@ a [Custom Resource](/docs/concepts/extend-kubernetes/api-extension/custom-resour
 Kubernetes 为自动化而生。无需任何修改，你即可以从 Kubernetes 核心中获得许多内置的自动化功能。
 你可以使用 Kubernetes 自动化部署和运行工作负载， *甚至* 可以自动化 Kubernetes 自身。
 
-Kubernetes 的 {{< glossary_tooltip text="Operator 模式" term_id="operator-pattern" >}}概念
-使你无需修改 Kubernetes 自身的代码，通过把定制控制器关联到一个以上的定制资源上，即可以扩展集群的行为。
+Kubernetes 的 {{< glossary_tooltip text="Operator 模式" term_id="operator-pattern" >}}概念允许你在不修改
+Kubernetes 自身代码的情况下，通过为一个或多个自定义资源关联{{< glossary_tooltip text="控制器" term_id="controller" >}}
+来扩展集群的能力。
 Operator 是 Kubernetes API 的客户端，充当
-[定制资源](/zh/docs/concepts/extend-kubernetes/api-extension/custom-resources/)
+[自定义资源](/zh/docs/concepts/extend-kubernetes/api-extension/custom-resources/)
 的控制器。
 
 <!--