我大四了，正在创建一家公司。

I'm a senior and I'm starting a company right now.

youdao

希望某一天我可以到海外教中文，现在我大四了，所以我必须面对找工作的问题。

I hope one day I could teach Chinese overseas. I am a senior now, so I have to face finding a job.

youdao

我还在上大四，明年六月就要毕业了。

I'm still in my last year, graduating next June.

youdao

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

While I was in college, part of the beauty and elegance of my undergraduate education was that between my junior and senior years I went on one of our college's seminars.

在我的大学期间，我的本科学业中的,一些美好的回忆,是在我的大三大四期间,我参加了一个学校的研讨会。

普林斯顿公开课 - 人性课程节选