A student in the freshman or sophomore class at a secondary school or college.
中学或大学的一、二年级学生

proctor (exceedingly angry): "So you confess that this unfortunate freshman was carried to this frog pond and drenched?"
学监(非常生气):“现在你承认这可怜的新生被扔进这蛙池里浑身湿透？”

I found out by chance that she was actually a freshman from London University.
我偶然发现她实际上是伦敦大学的一年级学生。

Did you take this course as a freshman, sops , junior, senior, or graduate student?
你学习这门课程是作为大学一年级、二年级、三年级、四年级学生还是研究生?

To celebrate I bought an ice cream cone and sat in my car to read a letter from my eldest daughter linda, a college freshman
为了庆贺我便买了一支冰淇淋坐到车里，开始读大女儿琳达寄来的信，她当时是大一的学生。