I should mention that Yen is a PhD student in Biomedical Engineering and Serge is an M. D. /PhD student who's getting his PhD in Biomedical Engineering.

我要说的是,叶是生物医学工程的博士生,斯吉是医学和生物医学工程的双学位博士,他博士的研究方向是生物医学工程

耶鲁公开课 - 生物医学工程探索课程节选

they also have the double program where you can do Master's in Education.

这里也有双学位课程，可以读教育硕士。

我的梦想是当教师 - SpeakingMax英语口语达人

I'm double majoring. I'm doing Sociology and Media Studies,

我有双学位，我学的是社会学和传媒学，

为什么来伯克利？ - SpeakingMax英语口语达人

or they're double majoring

或者是双学位

五年级 - SpeakingMax英语口语达人