我本科就读于xx大学，英语怎么说？

就读可以直接说成是
i am studying in
而
i am a graduate of、i am graduated from/i got my bachelor's degree
的意思就是，我是某所大学的毕业生，而不是正就读于哪了,意思就有所偏差了。

I graduated from xx university for my first degree.
OR I graduated from xx university for my undergraduate degree.

在国外本科教育是他们拿到的第一个学位所以可以说成是FIRST DEGREE
UNDERGRADUATE 就是就是学士的意思

I am studying in XXXX university.

I got my bachelor degree at ×× University.

I have been a graduate at XX university