used for showing that you are referring to two people or things, and that you are saying the same thing about the two of them 两个;两者;双方 You can write on both sides of the paper. 你可以写在试卷的两面。
There were two separate projects, and both came up with the same results. 有两个不同的项目,但两者结果都一样。
She invited us both down for a drink. 她邀请我们俩下去喝一杯。
two companies, both of which are owned by News International 由国际新闻集团所拥有的两家公司