cut them down和cut down them的區別

cut them down:把它們砍倒。

cut down them這種結構不存在。

cut down這種短語動詞是實義動詞加副詞構成的。放後面跟賓語時，如果作賓語的詞是名詞，那麼這個作賓語的名詞可以放在動詞的後面，也可以放在副詞的後面。如果是代詞作賓語，代詞不能放在副詞的後面，只能放在動詞的後面。

例句：

There are some trees on the hill， and a few people are cutting down the trees.

也可以説：

There are some trees on the hill， and a few people are cutting them down.