youdao

For your senior year of college, you must volunteer at the school library.

在你大四的时候，你必须在学校图书馆做志愿者。

youdao

In a study, Schwartz observed decision-making among college students during their senior year.

在一项研究中，施瓦茨观察了大四学生的决策过程。

youdao

But her search was not easy. "I started in August before my senior year.

VOA: special.2010.06.11

Same story for sophomore, same story for junior year, I finally took it senior year because they wouldn't get another chance even though it still doesn't fit in the workload ha ha.

大二，大三都是如此，最后我到大四才来上这门课,因为即使学业再忙,再不选就没有机会了，哈哈。

哈佛公开课 - 计算机科学课程节选

But this year, it's my senior year, so I'm just trying to take it easy and... take my classes.

但是今年我已经大四了，所以不想再那么忙了，就……好好地上课吧。

写作课程比较难 - SpeakingMax英语口语达人

It was 2008 and the start of spring break during our senior year at university.

BBC: A route of life-changing moments

Keep up your grades, key activities and achievements through your senior year, including the second half!

FORBES: Advice On Applying to Top U.S. Colleges Via Early Decision or Early Action

During her senior year, Wei mentioned all this to Mark Lin, a mutual friend.

NEWYORKER: The Story of a Suicide