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1·I flunked math in second grade.

我二年级时数学不及格。《牛津词典》

2·Sam is in (the) second grade.

萨姆读二年级。《牛津词典》

3·With one of my children, the powerful girl in their group of four friends convinced the others—in second grade—to ditch my daughter at recess.

我的孩子就有一个，她们四个朋友的团体中的有感召力的女孩说服了其他人——在二年级——在课间孤立我女儿。

4·Once in the second grade, our teacher had each of us race across the monkey bar.

二年级的时候，老师让我们每个人比赛越过攀爬架。

5·The parents want their child to skip to the second grade.

这家父母希望他们孩子能跳级到二年级。《新英汉大辞典》

6·Mrs. Margaret Drolet taught the second grade.

玛格丽特·德罗莱特夫人教二年级。

7·I'm in the second grade.

我二年级了。

8·Hi! I'm a Peter.I'm in the second grade.

我是彼得。我二年级了。

9·I am going to be in the second grade.

我马上要读二年级了。

10·The novelty of going to second grade quickly eroded to a dull ache.

当二年级小学生的新鲜感很快就蜕变成一种沉闷的苦痛。