形容词
中文翻译：Unknown
同义词：
['gratuity', 'complimentary']
例句：
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1.The hotel provides complimentary breakfast for all guests.
酒店为所有客人提供免费早餐。
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2. The restaurant offers complimentary drinks with every meal.
餐厅每顿饭都免费提供饮料。
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3. The company offers complimentary travel vouchers to its employees.
公司向其员工免费提供旅行优惠券。