名词
中文翻译：固定折扣率
同义词：
['Fixed rate', 'Concessional rate', 'Rate of concession']
例句：
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1. Thecompany offers a fixed concessionary rate for its products.
该公司为其产品提供固定的折扣率。
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2. The government has introduced a new concessionary rate for the poor.
政府为穷人引入了新的折扣率。
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3.The airline has a fixed concessionary rate for first-class passengers.
航空公司为头等舱乘客提供了固定的折扣率。