vt.
换，更换，调换，掉换：
Most stores will allow the purchaser to exchange goods.
大多数商店将允许顾客更换商品。
The two armies exchanged prisoners.
两军交换了战俘。
换回，换来，换取：
I exchanged the defective tire for a good one.
我用一条有毛病的轮胎换一条新的轮胎。
把…换成；用…交换；兑换(for)：
I'd like to exchange this d