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 3:2.
老师以3:2的比例解释了这个问题。
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2. The ratio of male to female students in the class is 5:4.
班上男生与女生的比例是5:4。
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3. The ratio of sugar to salt in this recipe is 1:1.
这个食谱中糖和盐的比例是1:1。