用户从飞书复制内容粘贴到编辑器里，浏览器通过剪贴板接口（Clipboard API）拿到的其实是一段 HTML 代码（就是网页的源代码格式）。我们要把这段 HTML 转成 Markdown（一种简洁的写作格式），再由工具渲染成公众号能用的排版。

David Alonso was quickest during Moto2 World Championship Free Practice One (FP1) Friday morning at Chang International ...

In a year in which it received a record number of applications for the incoming first-year class, Boston College continued to solidify its status as one of the country’s most selective universities.