名词
中文翻译：官方折扣率
同义词：
['official rate', 'official discount', 'official discount rate']
例句：
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1.The company's official discount rate is 20% off the regular price.
该公司的官方折扣率是原价的20%。
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2.The official discount rate for this product is 10%.
该产品的官方折扣率为10%。
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3. The official discount rate was announced at the beginning of the year.
官方折扣率在年初宣布。