The president says the class of 2009 is leaving college at a time of economic uncertainty.

VOA: standard.2009.05.14

In between those two parts I will ask that anyone who is shopping the class and would like to leave at that time do so then.

在前后两部分之间,请来试听并且想离开的同学在那时候离开,如果你能尽量等到那个时候。

耶鲁公开课 - 1945年后的美国小说课程节选

And we hope that at the end of the class, every time you're confronted with some technical problem, one of your first instincts is going to be, "How do I write the piece of code that's going to help me solve that?"

并且我们希望到了期末，每当你要面对一些,技术问题的时候，你们的本能之一将会是：,“我怎么才能编写一个代码,来帮我解决这问题？“

麻省理工公开课 - 计算机科学及编程导论课程节选

The challenge is for the work you are going to be doing at the class time we are doing to spend together.

这一挑战是针对,我们要一起在课上,完成的任务提出的。

麻省理工公开课 - 媒体、教育、市场课程节选

So this, unfortunately, is the last time that I am teaching positive psychology or any other class for that matter at Harvard.

不幸的是这学期将是我最后一次，在哈佛开设积极心理学或其他课程。

哈佛公开课 - 幸福课课程节选

The test is Wednesday the 29th, and it will be written during the normal class time.

测试是在周三29号，并且在正常上课时间进行。

麻省理工公开课 - 固态化学导论课程节选

And the point of this is so that you don't come to class heads down the whole time thinking everything I say is absolutely worthy of being written down.

这样做的意义在于你不必,从头到尾去考虑要不要,把我所说的都记录下来。

哈佛公开课 - 计算机科学课程节选

It is also, I should say, on the basis of this letter, which is why I ask people from time to time to remove their caps in the class room, from the House of Study.

也应可以说是因为这封信，促使我总是要求,课堂上的同学摘下鸭舌帽来听课，至少在学习的殿堂里。

耶鲁公开课 - 政治哲学导论课程节选

Now one of the books that will be assigned for the class is by Michael Pollan called, In Defense of Food, and he spends some time in that book discussing and he has a very interesting take on it.

这门课要布置给你们阅读的书中,有一本是迈克尔·鲍兰写的,为食物辩护,书中的部分内容,是讨论何为食物,他的某些见解很独到

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So before we leave it, I've been making a point in this class of coming back to reality from time to time, so this is a very simple model of the soccer game in reality.

在我们结束讨论之前,我来强调一下,我们应该回到现实中,这是一个很简单的足球模型

耶鲁公开课 - 博弈论课程节选

And I am not going to take the time to solve it because I think that is a waste of class time, but those are the three unknowns.

但我并不打算把解这几个方程,我觉得那会是浪费课堂时间，但那是三个未知式。

麻省理工公开课 - 固态化学导论课程节选

This class at the same time is about rigorous fun.

本课程同时是一种严格的乐趣。

哈佛公开课 - 幸福课课程节选

Now, it's also the case that this is fundamentally what class this algorithm falls into, it is going to take exponential amount of time.

哪个种类的一个实例,这个问题的时间复杂度是指数级的，也就是当n上升的时候。

麻省理工公开课 - 计算机科学及编程导论课程节选