A few required them to pass tests in the eleventh or twelfth grade to get a diploma, but to me, that was like closing the barn door after the cow is out.

有少数几个州要求学生在十一或十二年级时通过考试获得文凭，但在我看来，那等于是在奶牛已经跑出去了再关上牛圈的门——太迟了。

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In the twelfth grade, we would have a general revision of subjects, which is quite tiring.

在高三，我们要对所有科目进行总复习，这挺累人的。

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It represents more than a million students every year who entered ninth grade but do not complete twelfth grade.

VOA: special.2009.09.10

I was smarter than the twelfth graders in ninth grade,

我九年级的时候就比十二年级的学生更聪明，

现在的孩子好可怕 - SpeakingMax英语口语达人

By twelfth grade, he noticed that the girls at school whom he found most attractive were freshmen.

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The Collective Focus, led by the Urban League of Greater Pittsburgh in partnership with the AAAT and supported by the Pittsburgh Public Schools and the United Way of Allegheny County, has identified a two-pronged intervention approach wherein African American Achievement Trust participants volunteer as sixth grade mentors and twelfth grade Graduation Coaches.

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It ranked second to last in the state, and some high schools had twelfth-grade dropout rates approaching 40%.

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