pron.他们;她们;它们;指性别不详的人时,用以代替him或her
例句:
Did you eat all of them?
你都吃光了吗?
If anyone comes in before I get back, ask them to wait.
如果在我回来之前有人来,就请他等一等。
Has anyone seen my keys? I can't find them anywhere.
有人见到我的钥匙吗?我哪儿都找不到。