名词
中文翻译：比率
同义词：
['fraction', 'proportion', 'ratio', 'quota']
例句：
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1. The sales ratio of the new product is higher than that of the old one.
新产品的销售额比例高于旧产品。
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2. The ratio of sugar to water in this recipe is 1:1.
食谱中糖和水的比例是1:1。
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3. The ratio of carbon dioxide to oxygen in the atmosphere is 0.0496.
大气中二氧化碳与氧气的比例为0.0496。