名词
中文翻译：交换
同义词：
['trade', 'swap', 'transact', 'deal例句：1. The two countries are in the process of exchanging diplomatic notes.（两国正在交换外交照会。）']
例句：
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1. The two countries are in the process of exchanging diplomatic notes.
两国正在交换外交照会。
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2. He exchanged pleasantries with his neighbor before leaving.
他离开前与邻居寒暄了几句。
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3.Exchange rates fluctuate daily due to fluctuations in foreign trade.
由于外贸波动，汇率每天都在变化。