动词
中文翻译：Unknown
同义词：
['trade', 'swap', 'transact', 'deal', 'bargain', 'barter', 'converse']
例句：
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1. They exchanged 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.She exchanged her old phone for a new one.
她用她的旧手机换了一个新手机。