Also, I'm used to teaching this course three times a week and now it's suddenly twice a week, and so things that fell into nice 50-minute units are now being snipped up different ways, so it's pretty difficult.

还有,我的课程安排原来是一周三次,现在突然变成了一周两次了,所以原来 50分钟一节的内容,现在被拆成两部分了,这个有点儿难办

耶鲁公开课 - 基础物理课程节选