trade-in

n used article given as part of the payment for a new article （充当部分购货款的）用以折价贴换的旧物: [attrib 作定语] an old cooker's trade-in value 一个旧炉具的作价价值.

track out, track record, track suit, tracked, tracking station, tract, tractability, tractable, traction, traction-engine, tractor, tractor-trailer, trad, trade, trade gap, trade mark, trade name, trade price, trade secret, trade wind, trade-off, trade-unionism, trade-unionist, trademark, trader, Trades Union Congress (abbr 缩写 TUC), tradesman, trading, trading estate, trading post, trading stamp, tradition, traditional, traditionalism, traditionalist, traditionally, traduce, traducer, traffic, traffic circle,