动词
中文翻译：交换
同义词：
['trade', 'swap', 'transact', 'deal', 'bargain']
例句：
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1.They exchanged their old books for new ones.
他们用旧书换了新书。
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2.The company exchanged its shares with the government.
公司与政府进行了股份交换。
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3.He exchanged pleasantries with his neighbor before leaving.
他离开前和邻居打了招呼。