Niffer
[苏]交换, 换货, 交易
🗣️ 情景例句
He's a good father.
他是个好父亲。
John has built up his own business.He owns a hotel.
约翰建立了他自己的生意，他拥有一家宾馆。
In so far as any inquiry is a secret one,
任何一项研究都涉及到保密，