to take the place of something, or to put something or someone in the place of something or someone else

The factory replaced most of its workers with robots. 这家工厂用机器人取代了大多数工人。

Tourism has replaced agriculture as the nation's main industry. 旅游业取代了农业成为这个国家的主要产业。

If you replace something broken, damaged, or lost, you provide a new one.

I promised to replace the plate that I'd dropped. 我答应赔偿我打碎的盘子。

to put something back where it was before

The librarian replaced the books correctly on the shelves. 图书管理员把书一本不差地放回了原处。