动词
中文翻译：Unknown
同义词：
['trade', 'swap', 'transact', 'commerce', 'interchange']
例句：
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1. They exchanged pleasantries witheach other before the meeting.
会议前，他们彼此问候。
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2. The company exchanges itsproducts for raw materials.
公司用其产品换取原材料。
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3. Exchange rates fluctuatefrequently due to fluctuations in currency markets.
由于货币市场的波动，汇率经常变动。