n. 交换;交易;交易所;兑换(率);
vt. 交换,互换;兑换;交换,调换;
vi. 交换,替换;进行易货贸易,作物物交换;[金融业](货币)交换,兑换;
💡 ex 表示\"出,出去\" + change交换,替换 → vt.交换;交流\r\nn.交换
"Tom gave Helen an apple in exchange for a piece of cake."
汤姆用一个苹果与海伦换一块蛋糕.
近义:switchboard, central, interchange, permute, preempt, reciprocate
反义:protect, save, shelter, defend, guard