The extra classes can help students to get ahead in their studies.

VOA: special.2010.06.18

Right, one the things you can see now is, we start building up classes, we get these methods.

实际上是相等的，好，你们现在，可以明白的一件事情是。

麻省理工公开课 - 计算机科学及编程导论课程节选

because our classes are in such a way where we get to pick what classes we take.

因为我们能自由选择我们想上的课。

布朗的学生们 - SpeakingMax英语口语达人

"We wanted to get a little more hands on knowledge because our school wasn't really offering those kinds of courses or classes, so we wanted to not just sit around and read a book but actually do something,".

VOA: standard.2009.12.08

Nutrients get broken down into several classes and these are the constituents of food that your body uses for one purpose or another.

营养素这个问题需要花几节课来讨论,它们是食物的组成要素,供给身体吸收,支持身体机能运转

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I remember walking around the square during mu lunch hour, walking faster and faster trying to get around, four or five different classes of kids, all of whom were verbally abusive to me, and feeling there was no place that I belong there was no place that I felt connected to other kids.

我记得我在广场周围走着,那会儿正是午餐时间，我越走越快,想翘过接下来的四五个不同的班级,班上的孩子都对我恶言相向过，我觉得自己无处可去,我找不到自己和其他孩子相联系的地方。

麻省理工公开课 - 媒体、教育、市场课程节选

It's really easy to go back to my room between classes and get my books,

两堂课之间回寝室拿书也十分方便。

成功的医学研究 - SpeakingMax英语口语达人

And homework, it varies between classes. Sometimes you only get one assignment,

家庭作业，也跟课程的不同而有所差异。
有时候你只有一个作业，

很好奇住宿生活 - SpeakingMax英语口语达人

professors with good ratings, their classes get taken up first

评价好的教授的课先选满，

课程评价网站 - SpeakingMax英语口语达人

sometimes you get TAs who are teaching classes.

有时候是由助教讲课。

热情的教授 - SpeakingMax英语口语达人

And part of it is we want you to learn how to have a catalog, if you like, of different classes of algorithms, so that when you get a problem, you try and map it into an appropriate class, and use the leverage, if you like, of that class of algorithms.

另外我希望你们能学会,如何制作一个关于，算法不同课程的目录，这样当你碰到问题的时候，你可以去找到合适的课程，然后在那门课程中，寻找解决方法。

麻省理工公开课 - 计算机科学及编程导论课程节选

Just a few reminders, if any of you are here for the first time, and I know there are a few, if you go to this particular website, and you can get to this from the classes server as well, you'll see the course website that we've developed and it has a lot more information than if you just go to the classes server and click on the syllabus.

提醒一句,如果有同学是第一次来听课,我看到了有些新面孔,你们可以登录这个网站,从课程服务器也能找到,你们会发现我们更新了课程网站,其中含有大量的信息,若你只访问课程服务器,点击教程大纲

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选