1.?exchange?n.?交换；交流?v.?交换；交流；交易；兑换?-?短语：-?in?exchange?for?作为对……的交换-?exchange?student?交换生-?exchange?A?for?B?用?A?来换取?B-?exchange?sth?with?sb?和某人交换某物

-?例句：(1)?The?frightened?girl?stepped?up?to?me?cautiously,?whispering,?“Could?I?exchange?some?of?the?milk?for?your?bread?and?butter?”?Upon?this,?I?willin