I think you should take the lab sometime, but I don't know how many semesters that you have to take.

我觉得你们应该是不是地去做几次实验,我不太清楚你们要上多少个学期的课

耶鲁公开课 - 基础物理课程节选

Numbers are hard. That's why we teach whole semesters worth of courses in number theory.

因此我们整个学期关于数学理论,的学习也是物有所值。

麻省理工公开课 - 计算机科学及编程导论课程节选

For those of you who are not from MIT, - all MIT students have to take two semesters of physics all undergraduate students. For most students this is the most rigorous exposure to physics they've ever had In the first semester of physics, they study what I think was the basic nonunion mechanics.

如果你们不是麻省理工的学生，要知道麻省理工的所有学生,所有本科生---都得学两个学期的物理,对大多数学生来说,这是他们接受的最严格的物理学习,第一个学期他们学一些,基础力学。

麻省理工公开课 - 媒体、教育、市场课程节选