[zh] sync pod-topylogy-spread-contraints for chinese

content/zh/docs/concepts/workloads/pods/pod-topology-spread-constraints.md

@@ -10,6 +10,10 @@ content_type: concept
 weight: 40
 -->
 
+{{< feature-state for_k8s_version="v1.19" state="stable" >}}
+<!-- leave this shortcode in place until the note about EvenPodsSpread is
+obsolete -->
+
 <!-- overview -->
 
 <!--
@@ -20,6 +24,22 @@ You can use _topology spread constraints_ to control how {{< glossary_tooltip te
 之间的分布，例如区域（Region）、可用区（Zone）、节点和其他用户自定义拓扑域。
 这样做有助于实现高可用并提升资源利用率。
 
+<!--
+{{< note >}}
+In versions of Kubernetes before v1.19, you must enable the `EvenPodsSpread`
+[feature gate](/docs/reference/command-line-tools-reference/feature-gates/) on
+the [API server](/docs/concepts/overview/components/#kube-apiserver) and the
+[scheduler](/docs/reference/generated/kube-scheduler/) in order to use Pod
+topology spread constraints.
+{{< /note >}}
+-->
+
+{{< note >}}
+在 v1.19 之前的 Kubernetes 版本中，如果要使用 Pod 拓扑扩展约束，你必须在 [API 服务器](/zh/docs/concepts/overview/components/#kube-apiserver) 
+和[调度器](/zh/docs/reference/command-line-tools-referene/kube-scheduler/)
+中启用 `EvenPodsSpread` [特性门控](/zh/docs/reference/command-line-tools-reference/feature-gates/)。
+{{< /note >}}
+
 <!-- body -->
 
 <!--