动词
中文翻译：交换
同义词：
['trade', 'swap', 'transact例句：1. They exchanged pleasantries with each other before the meeting began.（会议开始前，他们彼此问候。）']
例句：
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1. They exchanged pleasantries with each other before the meeting began.
会议开始前，他们彼此问候。
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2.The two countries exchanged ambassadors to strengthen diplomatic relations.
两国互换大使以加强外交关系。
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3.She exchanged stories about her travels with her friends at the party.
她在聚会上与朋友们交换旅行故事。