exchangesn.票据交换总额名词exchange的复数形式.exchangev.交换；兑换n.交换；交易所；兑换；交战exchange credits学分互通exchange benefit交换利益exchange program交换程序exchange solvent转换溶剂exchange network交换网络exchange stationn.车辆交换站exchange reserve外汇准备exchange dealing外汇交易Exchange Systems交换子系统exchange A for B把A换成B