Gb	Eng
他把旧汽车折价添钱买了辆新型号的。	He traded in his car for a new model.
汽车修理厂给我５英镑折价换取我的汽车旧电池，这使我比较容易接受得买一个新电池的事实。	The garage gave me five pounds for trading in my old car battery, which took the sting of having to buy a new one.