回收(东西以便再利用）：recycle

All glass bottles which can't be refilled can be recycled.

所有不能再次装用的玻璃瓶子都可以被回收利用。

回收/收回（说过的话）：take back

Even four horses cannot take back what one has said.

一言既出,驷马难追.

I take back what I just said.我收回我刚才说的话.