kinds，n.同类的人(或事物)种类

例句

It became fashionable to eat certain kinds of fish

吃某些种类的鱼开始流行起来。

kind，adj.友善的体贴的慈祥的友好的宽容的客气请求或命令

n.种类同类的人(或事物)

例句

I was lost and wishes to see a kind face.

我迷了路，想看到一张友善的面孔。