名词
中文翻译：折扣索引
同义词：
['discount index', 'discount index number', 'discount index value例句：1. The company uses a voucher index to track the cost of its products.（该公司使用一个折扣指数来追踪其产品的成本。）2. The index is calculated based on the average price of goods sold in the market.（该指数是根据市场上销售的商品的平均价格来计算的。）']
例句：
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1. The company uses a voucher index to track the cost of its products.
该公司使用一个折扣指数来追踪其产品的成本。
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2. The index is calculated based on the average price of goods sold in the market.
该指数是根据市场上销售的商品的平均价格来计算的。
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3. The index has been revised several times since it was first introduced.
自首次引入以来，该指数已经多次修订。