Only 18.8% of the class of 1982 had some kind of diploma four years after high school, versus 45% of the class of 1972.

相对于1972届学生中有45%在中学毕业4年后获得了某种文凭来说，1982届学生的这一比例只有18.8%。

《柯林斯英汉双解大词典》

I signed up for an after-school training class.

我报名了一个课外培训班。

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There are a lot of after-class activities in our school.

我们学校有很多课外活动。

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School officials decided to make changes at Ballou after less than sixty percent of the senior class graduated in two thousand six.

VOA: special.2011.06.23

In fact, when I first started attending law school, a friend of mine came up to me after the second day of class,

事实上，当我第一次进入法律学校时，第二天下课后一个朋友过来找我，

在上西区 - SpeakingMax英语口语达人

Zuckerberg based his newly-public stance on personal experience with the middle-school entrepreneurship after-school class he started teaching earlier this year.

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He began offering an after-school guitar class to interested students and the program expanded.

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He got the idea from the kids he was teaching at an after-school music class in one of the tougher neighborhoods of north Philadelphia.

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