名词
中文翻译：Unknown
同义词：
['common', 'general', 'ordinary', 'typical']
例句：
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1.The average temperature in winter is below freezing point.
冬天的平均温度低于冰点。
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2. The average income of a worker is around $30,000 per year.
工人的平均年收入约为30,000美元。
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3. The average person can't afford to buy such a car.
普通人买不起这样的车。