到300年为止，罗马帝国，已经一分为二，东罗马和西罗马。
The Roman empire, by this time, by the year 300, has been divided up into two different basic empires, the west and the east.
将触屏键盘一分为二成左右手键盘以使拇指输入更便捷已经是老生常谈了。
Divvying up an onscreen keyboard into left - and -righthand sides to make for easier thumb-typing is a very old idea.
应用推荐