动词
中文翻译：交换
同义词：
['trade', 'swap', 'transact', 'deal', 'bargain']
例句：
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1. Theyexchanged pleasantries before the meeting began.
会议开始前，他们进行了寒暄。
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2.The two countries are known for their successful exchange programs.
这两个国家以其成功的交流项目而闻名。
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3. After the meeting, they exchanged business cards and agreed to meet again.
会议结束后，他们交换了名片并约定再次见面。