https://blog.wongcw.com/2019/09/13/twitter%e5%9c%a8%e8%88%8a%e9%87%91%e5%b1%b1%e8%a1%97%e9%81%93%e4%b8%8a%e6%89%93%e7%89%9b%e7%9a%ae%e5%bb%af%e5%bb%a3%e5%91%8a%e5%b8%82%e6%94%bf%e9%83%a8%e9%96%80%e6%8c%87%e8%b2%ac/
Twitter在舊金山街道上打“牛皮廯”廣告市政部門指責其違法