传统意义上的「国际大厂三巨头」谷歌、三星和苹果将会分别在七八九月召开手机发布会，由于前两年的平淡，三大家都积攒了不少牙膏打算在这个夏天爆发出来，仅从前期爆料的规模上就可见一斑。

The best viewing opportunities occur within a few hours before or after sunrise or sunset when the station is illuminated by ...