https://blog.wongcw.com/2019/01/10/%e7%be%8e%e5%9c%8b%e6%94%bf%e5%ba%9c%e5%81%9c%e6%93%ba%e9%80%a3%e7%b4%afuber%e3%80%81lyft-%e8%87%b3%e4%bb%8a%e6%9c%aa%e6%94%b6%e5%88%b0ipo%e6%96%87%e4%bb%b6%e5%8f%8d%e9%a5%8b/