average
/ˈævərɪdʒ/
n. / adj.
一句话记住
平均数;平均水平;平均的
释义与例句
n.
平均数;平均水平
the result of adding amounts together and dividing the total by the number of amounts
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The average of five, seven, and nine is seven.
五、七和九的平均数是七。
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On average, commuters spend forty minutes travelling to work.
通勤者上班路上平均花费四十分钟。
展开其余 1 条例句
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Test scores were slightly above the national average.
测试成绩略高于全国平均水平。
adj.
平均的
calculated by dividing a total amount by the number of amounts
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The average temperature in July is around 24 degrees.
七月的平均气温约为二十四度。
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The average score increased by five points.
平均分提高了五分。
展开其余 1 条例句
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The chart shows average household income over ten years.
图表显示了十年间的平均家庭收入。
词源与构词
源自法语 avarie(海损),其计算含义由共同分摊海上损失的办法逐渐发展而来。
记忆钩子
on average 表示“平均而言”;average 作形容词直接修饰 score、income、temperature 等。
词族与关联词
同义词
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mean 平均数;均值在数学语境中 mean 通常指算术平均数;average 更通用,也可指典型水平或普通程度。The arithmetic mean is calculated by dividing the total by six. 算术平均数通过将总数除以六来计算。
易混词(形近或义近,注意区别)
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median 中位数average 常指所有数值之和除以个数;median 是按大小排列后位于中间的数值,两者在偏态分布中可能相差很大。The median income is less affected by a few very high salaries. 收入中位数较少受到少数极高工资的影响。
常见搭配
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on average 平均而言On average, women in the study slept seven hours a night. 研究中女性平均每晚睡七小时。
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average score 平均分The school's average score rose for a third year. 这所学校的平均分连续第三年上升。
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average income 平均收入Average income does not reflect differences between households. 平均收入不能反映不同家庭之间的差异。