<http://schema.org/description>
"\u8BA4\u8BC6\u4E86\u4E00\u4E2A\u4F4F\u5728\u9999\u6E2F\u7684\u4EBA\uFF0C\u7B54\u5E94\u6BCF\u5E74\u90FD\u548C\u5979\u4EA4\u6362\u660E\u4FE1\u7247"^^<http://www.w3.org/2001/XMLSchema#string>
<https://catfan.me/timrocket/p343454>