v.换回( exchange的现在分词 )；交换，替换；进行易货贸易，作物物交换；[金融业]（货币）交换，兑换 英英释义： exchange[ eks'tʃeindʒiŋ ]n.chemical process in which one atom or ion or group changes places with anothera mutual expression of views (especially an unpleasant one)"they had a bitter exchange"t