both意思是“两个都”，可作主语，宾语或同位语等，常与and连用，连接两个并列成分，作主语时谓语动词用复数。both of后跟名词/代词复数，可作主语，宾语；作主语时谓语动词用复数。
both造句
1、But both require land.
2、We are both stubborn.
3、Both made of pine; both one inch thick.
4、Both men are grumpy, but both reckon they will cope.
5、Or a bit of both?
6、These children are both mine.
7、But I loved both places.
8、You cannot have both together.
9、The problem is that they are too similar. They are both resolute, both are proprietors, and both have awful characters.
10、Malaria is both preventable and curable.