Exchanging
v. 交换；兑换；交流（exchange的ing形式）
✅ 同义词
🗣️ 情景例句
Uh-uh.
嗯。
He who hath good health is young, and he is rich who owes nothing.
健康葆青春，无债即富有。
We'll have to get this contract typed as soon as possible.
我们得尽快把契约书打出来。