名词
中文翻译：比例
同义词：
['scale', 'proportion', 'ratio', 'quotient']
例句：
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1. The teacher gave us a ratio of 3:4 as the ratio of parts.
老师给了我们一个3:4的比例作为部分的比率。
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2. The engineer calculated the ratio of weight to volume in the new design.
工程师计算了新设计中重量与体积的比率。
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3. The ratio of sugar to water is 1:2, so one teaspoon of sugar will dissolve in two teaspoonsof water.
糖和水的比率是1:2，所以一茶匙糖会溶解在两茶匙水中。