The average school year used to be170days.

平均学年长度过去是170天。

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On average, the kids increased their writing abilities by 2.1 grade levels and their math by 2.9 grade levels within one school year.

平均来说，孩子们在一个学年内提高了2.1个年级的阅读能力和2.9个年级的数学能力。

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In other words, the study notes, at the peak of their earning power, the average worker with only a high school diploma earns only about as much as a college graduate one year out of school.

研究指出，换言之，即便在赚钱能力处于顶峰时，只有高中文凭的普通工人挣的钱也只有刚毕业一年的大学生那么多。

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So I'm just guessing, having been in a few of these things over the years, that by the end of the semester, or certainly by the end of the school year, the state of the average Yale dorm room is quite disgusting.

我看啊,因为我也念过大学,期末或年末的时候,耶鲁大学多数寝室会挺脏乱的

耶鲁公开课 - 博弈论课程节选

Teachers update and add new material to the website during school holidays and get just seven weeks off each year, roughly the same as the average Swedish office worker.

ECONOMIST: Private education

Any university team in an NCAA-sanctioned sport had to "achieve a 900 multiyear APR or a 930 average over the most recent two years to be eligible" for postseason play during the 2012-2013 school year, according to Christianson.

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The overall average shows that 86.7% gained their first choice of school for this autumn, higher than last year.

BBC: Parents face big local differences in secondary places