So, at this point, kept the pre-med, just switched the major to chemistry.

如果你一心一意的要学生物学，我猜你会选择有机化学。

麻省理工公开课 - 化学原理课程节选

it's a two-and-a-half-year-long program that mixes biology, chemistry, physics and computer science together.

这门课是一个两年半的项目，涵盖了生物学、化学、物理学，还有计算机科学。

与教授的面谈 - SpeakingMax英语口语达人