互换

hù huàn zhù zhái

互换住宅

house exchange

hù huàn pī zhǔn shū

互换批准书

exchange instruments of ratification

hù huàn bèi wàng lù

互换备忘录

exchange memoranda

tā men hù huàn zuò wèi

他们互换座位。

They exchanged seats.

wài jiāo zhào huì de hù huàn

外交照会的互换

an exchange of diplomatic notes

zhè bù qì chē de zhè liǎng gè líng jiàn kě yǐ hù huàn

这部汽车的这两个零件可以互换。

These two parts of the car are interchangeable with each other.