名词
中文翻译：交换服务
同义词：
['exchange', 'swap', 'trade']
例句：
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1.The exchange service at the airport is very convenient for travelers.
机场的交换服务对旅行者非常方便。
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2.They exchanged services to improve their efficiency.
他们交换了服务以提高效率。
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3. The company offers a variety of exchange services to its clients.
该公司为客户提供各种交换服务。