He made a lot of friends in his second-grade class.

他在二年级班级里交了很多朋友。

My son is in second-grade and loves his new teacher.

我儿子在二年级，他很喜欢他的新老师。

She teaches second-grade at the local elementary school.

她在当地的小学教二年级。

The second-grade students are learning how to read simple sentences.

二年级的学生正在学习如何阅读简单的句子。

The textbooks in third grade are much harder than those in second grade.

三年级的课本比二年级的难多了。

The second-grade class went on a field trip to the zoo.

二年级的班级去动物园进行了实地考察。

Whaley got the idea of this second-grade presidential campaign project.

Whaley想出了这个二年级的总统竞选项目。

Once in the second grade, our teacher had each of us race across the monkey bar (攀爬架).

二年级的时候，我们的老师让我们每个人都跑过攀爬架。

Her son skipped the second grade.

那是从二年级开始的事了。

Why settle for a second-grade life?

为什么要安心于次等的生活？