https://blog.wongcw.com/2018/12/29/%e8%8a%b1%e6%97%97%e8%aa%bf%e4%bd%8eiphone%e7%94%a2%e9%87%8f%e9%a0%90%e6%9c%9f%e7%94%b1%e6%96%bc%e6%96%b0%e4%b8%80%e4%bb%a3%e6%89%8b%e6%a9%9f%e4%b8%8d%e7%b5%a6%e5%8a%9b/
花旗調低iPhone產量預期由於新一代手機不給力