<http://schema.org/description>
"\u5C0F\u5317\uFF0C\u611F\u8C22\u65E0\u79C1\u5206\u4EAB\uFF01\uFF01\uFF01 \u54C8\u54C8\uFF0C\u5077\u5077\u7684\u95EE\u4E00\u53E5\uFF0C\u4F60\u8FD9\u4E48\u5389\u5BB3\uFF0C\u4F60\u5988\u5988\u77E5\u9053\u5417\uFF1F\uFF1F &lt;img src=\"http://img.t.sinajs.cn/t35/style/images/common/face/ext/normal/6a/laugh.gif\" /&gt; "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.guxiaobei.com/10-youtube-video-optimization-techniques-you-need-to-know.html>