名词
中文翻译：折扣扣除
同义词：
['reduction', 'deduction', 'credit']
例句：
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1. The company is offering a voucher for a free meal at the restaurant.
公司提供一张餐厅免费用餐的优惠券。
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2. The student received a voucher for an extra hour of study time.
学生获得了一张额外的一小时学习时间的优惠券。
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3. The store has a policy of voucher redemption for customers who spend more than $500.
该商店为消费超过500美元的顾客提供优惠券兑换政策。