名词
中文翻译：比率
同义词：
['proportion', 'proportionate', 'ratio', 'proportions']
例句：
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1. The teacher explained the problem in a ratio of 3:4.
老师以3:4的比例解释了这个问题。
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2. The company's profits are increasing at a ratio of 5% per year.
公司的利润率每年以5%的比例增长。
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3. The ratio of sugar to water in this recipe is 1:1.
这个食谱中糖和水的比例是1:1。