feat(lang): Update zh-CN.json (#4370)

lang/zh-CN.json

@@ -12,16 +12,29 @@
   "Non-Fullscreen": "退出全屏",
   "Mute": "静音",
   "Unmute": "取消静音",
-  "Playback Rate": "播放码率",
+  "Playback Rate": "播放速度",
   "Subtitles": "字幕",
-  "subtitles off": "字幕关闭",
+  "subtitles off": "关闭字幕",
   "Captions": "内嵌字幕",
-  "captions off": "内嵌字幕关闭",
+  "captions off": "关闭内嵌字幕",
   "Chapters": "节目段落",
+  "Close Modal Dialog": "关闭弹窗",
+  "Descriptions": "描述",
+  "descriptions off": "关闭描述",
+  "Audio Track": "音轨",
   "You aborted the media playback": "视频播放被终止",
   "A network error caused the media download to fail part-way.": "网络错误导致视频下载中途失败。",
   "The media could not be loaded, either because the server or network failed or because the format is not supported.": "视频因格式不支持或者服务器或网络的问题无法加载。",
   "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "由于视频文件损坏或是该视频使用了你的浏览器不支持的功能，播放终止。",
   "No compatible source was found for this media.": "无法找到此视频兼容的源。",
-  "The media is encrypted and we do not have the keys to decrypt it.": "视频已加密，无法解密。"
+  "The media is encrypted and we do not have the keys to decrypt it.": "视频已加密，无法解密。",
+  "Play Video": "播放视频",
+  "Close": "关闭",
+  "Modal Window": "弹窗",
+  "This is a modal window": "这是一个弹窗",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "可以按ESC按键或启用关闭按钮来关闭此弹窗。",
+  ", opens captions settings dialog": ", 开启标题设置弹窗",
+  ", opens subtitles settings dialog": ", 开启字幕设置弹窗",
+  ", opens descriptions settings dialog": ", 开启描述设置弹窗",
+  ", selected": ", 选择"
 }