<http://schema.org/description>
"\u6BCF\u4E2A\u6708\u56DE\u9999\u6E2F\u4E00\u8D9F\uFF0C\u7136\u800C\u5BF9\u9999\u6E2F\u6CA1\u6709\u4EFB\u4F55\u611F\u89C9\u4E86\u3002"^^<http://www.w3.org/2001/XMLSchema#string>
<https://catfan.me/yqjun/p317389>