So, I make a pledge. You give me seven hours a week, you will pass this class, not just by the skin of your teeth. You will pass it.

我保证，你们要是一周学习7个小时，肯定可以通过这门课，一点都不惊险，你们会通过的。

麻省理工公开课 - 固态化学导论课程节选

So I ended up sleeping maybe 4 or 5 hours and going to class.

结果我只能睡四五个小时，然后就要去上课。

耶鲁的忙碌生活 - SpeakingMax英语口语达人

We have students come to five hours' class, in the same room.

学生在同样的教室里，上五小时的课。

麻省理工公开课 - 媒体、教育、市场课程节选

Right, so, class is two hours of lecture a week.

对，每周两个小时的课。

麻省理工公开课 - 计算机科学及编程导论课程节选

I would have class maybe 8 to 9 hours like all in a row

我要连续上八至九小时的课，

耶鲁的忙碌生活 - SpeakingMax英语口语达人

I used to... you know, I lived and worked out of Sloane Lab up on the hill and it was easy to have office hours before or after class but now you have to make a special trip.

我以前...,我以前的工作和住的地方都是斯隆实验室外的,小山上,那时的开放时间设在课前或课后对我来说都很方便,但是现在你们就得费点儿周折了

耶鲁公开课 - 基础物理课程节选

And nine hours a week of outside-the-class work.

每周还有九个小时的课堂外工作。

麻省理工公开课 - 计算机科学及编程导论课程节选