trade-off

n.1.(对不能同时兼顾的因素)权衡;2.物物交换

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-in, 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, traffic indicator,