Hayley教口語，“以舊換新”用英語怎么說？

part exchange

/?pɑ?t ?ks?t?e?nd?/

a way of paying for a new object that involves giving your old one as part of the payment

部分抵價(jià)交易，以舊換新交易

If you give an old item in part exchange for something you are buying, the seller accepts the old item as part of the payment, so you do not have to give them as much money.

如果你用舊物品做了part exchange來去買你要的東西，那么就是說賣家會(huì)接受舊物品作為付款的一部分，所以你不需要用正價(jià)來買。

I might offer them my old camera in/as part exchange for a new one.

我可以用我的舊相機(jī)部分抵價(jià)來買一臺(tái)新相機(jī)。