I have four years study in the Department of Mechanical Engineering and it has given me a solid theory foundation.

我在机械工程系学了4年，这为我的理论水平打下了坚实的基础。

youdao

I have four years study in the Department of Mechanical Engineering and it has given me a solid theory foundation.

我在机械工程系学了4年，这为我的理论水平打下了坚实的基础。

youdao