名词
中文翻译：比例
同义词：
['ratio', 'share', 'part', 'portion例句：1. The proportion of the population that is overweight is increasing.（超重人口的比例在增加。）']
例句：
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1. The proportion of the population that is overweight is increasing.
超重人口的比例在增加。
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2. The company's profits are inversely proportional to its expenses.
公司的盈利与其支出成反比。
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3.The teacher adjusted the lesson to match the students' learning ability.
老师调整了课程内容以适应学生的学习能力。