sync /docs/concepts/overview/*

Author: asa3311

content/zh-cn/docs/concepts/overview/_index.md

@@ -7,6 +7,9 @@ weight: 20
 card:
  name: concepts
  weight: 10
+ anchors:
+ - anchor: "#why-you-need-kubernetes-and-what-can-it-do"
+ title: 为什么选择 Kubernetes?
 no_list: true
 ---
 <!--
@@ -21,6 +24,9 @@ weight: 20
 card:
  name: concepts
  weight: 10
+ anchors:
+ - anchor: "#why-you-need-kubernetes-and-what-can-it-do"
+ title: Why Kubernetes?
 no_list: true
 -->
 
@@ -271,6 +277,25 @@ Kubernetes 为你提供：
  Kubernetes 允许你存储和管理敏感信息，例如密码、OAuth 令牌和 SSH 密钥。
  你可以在不重建容器镜像的情况下部署和更新密钥和应用程序配置，也无需在堆栈配置中暴露密钥。
 
+<!--
+* **Batch execution**
+ In addition to services, Kubernetes can manage your batch and CI workloads, replacing containers that fail, if desired.
+* **Horizontal scaling**
+ Scale your application up and down with a simple command, with a UI, or automatically based on CPU usage.
+* **IPv4/IPv6 dual-stack**
+ Allocation of IPv4 and IPv6 addresses to Pods and Services
+* **Designed for extensibility**
+ Add features to your Kubernetes cluster without changing upstream source code.
+-->
+* **批处理执行**
+ 除了服务外，Kubernetes 还可以管理你的批处理和 CI（持续集成）工作负载，如有需要，可以替换失败的容器。
+* **水平扩缩**
+ 使用简单的命令、用户界面或根据 CPU 使用率自动对你的应用进行扩缩。
+* **IPv4/IPv6 双栈**
+ 为 Pod（容器组）和 Service（服务）分配 IPv4 和 IPv6 地址。
+* **为可扩展性设计**
+ 在不改变上游源代码的情况下为你的 Kubernetes 集群添加功能。
+
 <!--
 ## What Kubernetes is not
 -->

content/zh-cn/docs/concepts/overview/components.md

@@ -5,6 +5,7 @@ description: >
  Kubernetes 集群由控制平面的组件和一组称为节点的机器组成。
 weight: 30
 card:
+ title: 集群组件
  name: concepts
  weight: 20
 ---
@@ -18,6 +19,7 @@ description: >
  plane and a set of machines called nodes.
 weight: 30
 card:
+ title: Components of a cluster
  name: concepts
  weight: 20
 -->

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

@@ -29,7 +29,8 @@ objects. Labels can be used to select objects and to find
 collections of objects that satisfy certain conditions. In contrast, annotations
 are not used to identify and select objects. The metadata
 in an annotation can be small or large, structured or unstructured, and can
-include characters not permitted by labels.
+include characters not permitted by labels. It is possible to use labels as 
+well as annotations in the metadata of the same object.
 
 Annotations, like labels, are key/value maps:
 -->
@@ -38,6 +39,7 @@ Annotations, like labels, are key/value maps:
 你可以使用标签或注解将元数据附加到 Kubernetes 对象。
 标签可以用来选择对象和查找满足某些条件的对象集合。 相反，注解不用于标识和选择对象。
 注解中的元数据，可以很小，也可以很大，可以是结构化的，也可以是非结构化的，能够包含标签不允许的字符。
+可以在同一对象的元数据中同时使用标签和注解。
 
 注解和标签一样，是键/值对：