Exchanging
v. 交换；兑换；交流（exchange的ing形式）
✅ 同义词
🗣️ 情景例句
He is interested in collecting foreign stamps.
他对收集外国邮票有兴趣。
Yes,I had breakfast two hours ago.
是,我2小时以前吃了早餐。
May I ask some questions?
我可以问几个问题吗？