GOOGLE:
https://www.youtube.com/watch?v=HgLjS4lHw7U
https://www.youtube.com/watch?v=B7-fu_oqMyY
MS:
https://www.youtube.com/watch?v=K7AVcI-AjJU
https://www.youtube.com/watch?v=1yR-Z9YPc5Y
https://www.youtube.com/watch?v=QrZEj1aB35M
不错捏
再来我猜可能是亚马逊或苹果?
中国公司不知道敢不敢做