兑换

你能帮我兑换一下吗？

nǐ néng bāng wǒ duìhuàn yīxià ma?

Could you help me exchange this?

我们可以互相兑换一些物品。

wǒmen kěyǐ xiānghù duìhuàn yīxiē wùpǐn.

We can swap some items between us.