名词
中文翻译：比例
同义词：
['fraction', 'proportion', 'ratio', 'rate', 'proportionate']
例句：
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1. The ratio of the population to the land is 1:3.
人口与土地的比例是1:3。
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2. The teacher gave us a ratio of 50% to complete the project on time.
老师给了我们50%的时间来完成这个项目。
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3. The manager calculated the ratio of profits to expenses for the year.
经理计算了年度利润与支出的比例。