他把其中两个小学生砍成重伤，割破了一个二年级学生的喉咙，任由其在地上死去。

He hacked two primary schoolers, badly wounding both, and slit a second grader's throat, leaving him dying on the ground.

youdao

他们是二年级的学生。

They are pupils of Grade Two.

youdao

目前我在给本科二年级学生讲授消费者行为课程，我们研究涉及消费者行为的所有事情，尤其是消费者是如何在广告中呈现的。

Currently I teach consumer behavior to undergraduates in their second year and we look at all kinds of things in consumer behavior and particularly how consumers are presented in advertising.

youdao

So historically, the course is a lot of sophomores who, like me perhaps, are realizing that they finally have time to explore beyond their own interests.

从往年数据上可以看出，上这个课程的大都是大学二年级的学生，可能跟当时的我一样，开始认识到我们终于有时间,来探究我们兴趣以外的事情。

哈佛公开课 - 计算机科学课程节选

His daughter, Louise, is by now a college sophomore.

他的女儿，路易斯，现在是大学二年级学生。

耶鲁公开课 - 1945年后的美国小说课程节选