https://qooah.com/2011/12/02/apple-%e6%96%a5%e6%8c%87-motorola-%e4%bb%a5%e5%b0%88%e5%88%a9%e9%98%bb%e7%a4%99%e7%a7%91%e6%8a%80%e5%89%b5%e6%96%b0/