It's half past seven on Monday morning: time to get ready for school.

现在是星期一早上七点半：该准备上学了。

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This new study looks in more detail at the effect of a half-hour delay on school start time by asking students to fill in questionnaires at the start and end of the three-month study.

这项新的研究更细的研究延后上学半个小时会产生的影响，在研究开始和三个月后研究结束的时候，学生们被要求填写一份调查问卷。

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The school teaching time is on a week five days half class, then rests one day half.

学校的教学时间是一个星期上五天半的课，然后休息一天半。

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In our survey, roughly half of all career-oriented moms say that working part-time before children are school-aged is desirable.

FORBES: All Moms Have Messy Houses And Other Survey Findings

More than half of all black men without a high-school diploma go to prison at some time in their lives.

NEWYORKER: The Caging of America

But our biggest problem remains at the most basic level: We're getting only half of our minority kids out of high school on time, while 90% of the fastest-growing jobs require post-secondary education.

FORBES: Magazine Article