cough英[kɒf]美[kɔ:f]vt.咳嗽;(引擎等)发噗噗声;咳出;n.咳,咳嗽;咳嗽病;(机关枪等的)连续发射声;[例句]Grahambegantocoughviolently格雷厄姆开......