<http://schema.org/description>
"\u53EF\u4EE5\u6DE1\u5B9A\u7684\u5F88\u6C89\u7740\uFF0C\u4E5F\u53EF\u4EE5\u6DE1\u5B9A\u7684\u5F88\u7EAF\u7CB9\uFF01"^^<http://www.w3.org/2001/XMLSchema#string>
<https://catfan.me/lessi/p19291>