Well, for the answer to that we have to go back to ancient Greek music theory, and when you read about this--it's really turgid stuff-- but believe it or not, I teach a course on this at the graduate level.

这个,要回答那个问题,恐怕要追溯到古希腊的音乐理论,每次读这些都会云山雾罩的,不管你信不信,我曾在研究生中开过这个课程

耶鲁公开课 - 聆听音乐课程节选

And she just really, she looked into the curriculum, she looked at the graduate program

而且她真的，真的认真地看课程，看研究生项目，

我们是校园情侣 - SpeakingMax英语口语达人

You can search obviously by any of the fields up top by days ; of the week you want a class; days of the week you don't want a class; grad level or undergrad level, faculty scores that are 4.0 and higher, ; course overall scores that are 4.0 and higher; and a whole number of other features including synchronization with Google calendar.

你可以按日期来搜索网页上的任一科目,以决定哪天去上课，哪天不去上课;,研究生课程或本科生课程,教师打分为4分或更高的课程，课程总学分为4分或者更高的课程;,当然很多其他选择方式,包括Google同步日历。

哈佛公开课 - 计算机科学课程节选

But just go to cs50.net, click office hours and you'll see the Google Calendar with all of the office hours that are still happening tonight, as well as tomorrow and these are just an opportunity to chat, to ask questions one on one with the teaching fellows or course assistants or frankly just a way to hang out during brain break and work on projects and then see what some of your friends might be tackling themselves.

但是我要提醒大家去cs50，net网站看看,这里清清楚楚告诉你,什么时候该学习工作，当然也包括今晚的明天的，我们还有一个机会供，一个与研究生助教或课程辅导员交流的机会,更直白来说,是提供你们开小差的机会,看看你们周围哪些人,在开小差呢。

哈佛公开课 - 计算机科学课程节选