trade

n.贸易；行业 vi.做买卖 vt.用…去交换

trachoma, tracing, tracing-paper, track, track and field, track down, track events, track out, track record, track suit, tracked, tracking station, tract, tractability, tractable, traction, traction-engine, tractor, tractor-trailer, trad, trade gap, trade mark, trade name, trade price, trade secret, trade wind, trade-in, 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,