主修

She majored in Maths and Physics at university.

她在学里主数学和物理。

Concentrators in geological sciences elect either geology or geography.

主地质学学地质学或地理课程。

He is a history major.

他是主历史学。

Mr. Stone spent his undergraduate days in Columbia University, majoring in economics.

斯通先在哥伦比亚学度过了他四学活, 主经济学。