“对一些人来说这很艰难，但是到了高年级的时候，三分之二学生升级到物理专业。”吉尔伯特说。

"It was rough for some, but by senior year, two-thirds have moved up to physics," says Gilbert.

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高年级的同学们俨然成为新生们的向导。

Students of higher grades acted as guides for the freshmen.

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高年级的学长们热情地迎接她的到来，并帮她拿行李。

The students from the upper classes gave Fang a warm welcome and helped her to carry her luggage.

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You may run into upper-class students, students who are more advanced, you will run into your TA.

你可能会碰上高年级的学生,他们比你的水平要高,当然还有助教

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kind of give them a sense of what it's like to be an older student.

或者是让他们了解高年级学生的学习生活状态是怎样的。

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He was a Junior at Yale College.

他是耶鲁大学的高年级学生

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