有词根them+后缀selves,中文意思是pron. 他们自己他们亲自

例如

They made themselves a den in the woods.他们在树林里为自己搭了个窝,在里面玩。

Don and Julie paid for it themselves.唐和朱莉他们自己付的款。

Each student makes only one item themselves.

每个学生自己只做一项。