名词
中文翻译：比率
同义词：
['proportion', 'proportionate', 'ratio', 'ratio of']
例句：
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1. The teacher explained the problem in a ratio of parts.
老师用部分来解释问题。
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2. The ratio of sugar to water is 1:10.
糖和水的比例是1:10。
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3. The ratio of students to teachers was 5:1.
学生与教师的比例是5:1。