The summer after 7th grade, students spend three weeks on a college campus studying advanced math for seven hours a day.

七年级后的那个夏天，学生们要在大学校园里待上三周，每天学习七个小时的高等数学。

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Students must also have been resident in the UK for at least three years, which can exclude some students from overseas.

学生必须在英国居住至少3年，这可能会将一些海外学生排除在外。

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The three engineering students got the idea for the device while sitting in their school's courtyard.

这三个工程系的学生坐在学校的院子里时产生了这个想法。

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She suggests that students budget at least one thousand three hundred dollars for a nine-month school year.

VOA: special.2009.05.21

Others who want to graduate in three years must pay for the same education as four-year students, but in a shorter period of time.

VOA: special.2009.07.23

Amizade charges college students as much as ten thousand dollars for three months of experience.

VOA: special.2009.07.27

The new school features more than 700 computers -- one for every three students.

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Instead, The Town Talk reported, a school district committee overruled the recommendation and suspended three white students for three days for hanging the nooses, a gesture written off as a prank.

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Lu suggested the government adjust the basic living allowance and food subsidies for university students every three months according to changes in the consumer price index.

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