All right. So let's do an in-class problem, and this will be done with zinc.

好的，让我们做一个课堂上的问题，这个问题需要用锌来完成。

麻省理工公开课 - 化学原理课程节选

you can talk to them about problem sets or questions that you've been having about class work.

然后你就可以和他们讨论你在学习中遇到的问题了。

与教授的面谈 - SpeakingMax英语口语达人

I talked about life is not like a mathematic problem ? with you or in my other class ?

我说过生活不是个数学难题,是跟你们说过？，还是在我另外的课上？

麻省理工公开课 - 电影哲学课程节选

The in class mid-terms--the grades will be roughly 10% problem sets, 20% first mid-term, 30% second mid-term, 40% final.

期中那次是随堂考,在最后成绩中,习题成绩占10%,第一次期中占20%,第二次期中占30%,期末考试占40%

耶鲁公开课 - 金融市场课程节选

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

So, remember we solved this problem earlier in the class, but we were talking about orbitals.

记得吗我们之前的那个问题，我们讨论的是轨道。

麻省理工公开课 - 化学原理课程节选

I'm going to give the last class a problem which is pretty interesting, which is what happens to you when you have an elevator.

我将讲解最后一个例题,非常有趣,也就是当你在电梯里的情形

耶鲁公开课 - 基础物理课程节选

And you also have classes that will give you an insight into, someone is coming to see you, who has an alcohol problem, a drug abuse problem, things you will engage in daily activities, boyfriend girlfriend problems, having trouble in class.

和其他课程，比如,有一个人来找你咨询，他有酗酒或者是吸毒问题，或者其他会在日常生活中遇到的问题，男友女友的问题，课堂上的问题等等。

普林斯顿公开课 - 人性课程节选

The assignment for the next class is to do Problem 2 of Chapter 1, which I've repeated right here, and that's to think beyond what I've talked about in terms of what is Biomedical Engineering.

下次课的预习任务是做第一章课后习题二,我在这里重复一下,除了我已经说过的东西之外,去想一下什么是生物医学工程

耶鲁公开课 - 生物医学工程探索课程节选

0% of the class will be on problem sets, 30% of the grade; 30% on the mid-term, and 40% on the final; so 30/30/40.

课堂作业占总分数的30%,期中考试占30%,期末考试占40%,即30/30/40

耶鲁公开课 - 博弈论课程节选

Portion sizes, and we'll devote a class to this later on, have gone way up and that's a big problem, the amount of processing I mentioned.

食物份量直线上升,这是个问题,我们将专门用一堂课讲这个,即刚才提到的食品加工程度的问题

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If this was a class in which we were going to worry about the general problem of identity across time, this would be a problem we'd have to directly face.

如果我们要讨论的是,贯穿时间的,质的总的问题，我们就需要,直面这个问题。

耶鲁公开课 - 死亡课程节选

So this is a question that I want to continue today, to consider what the trial of Socrates means and I want to begin by going back to a problem or a paradox that I ended the class with last time.

这就是我今天要继续的问题，考虑苏格拉底受审的意义,我想要先回到一个问题,一个悖论,也是我们上堂课所遗留的。

耶鲁公开课 - 政治哲学导论课程节选

What you're much better at doing is saying how do I take the problem I've got and map it into a class of algorithms about which I know and use the efficiencies of those to try and figure out how to make it work.

当你碰到问题的时候,更好的方法是把遇到的问题映射,到已经设计好的算法中去,并用这些算法来提高效率,来保证问题得到解决。

麻省理工公开课 - 计算机科学及编程导论课程节选

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

So always amazing to us how we go into the problem, our eye or mind can see one class of solutions, but the math will tell you sometimes there are new solutions and you've got to respect it and understand and interpret the unwanted solutions, and this is a simple example where you can follow what the meaning of the second solution is.

解决问题的方式总能让人惊喜不已,我们的眼睛或思想可以看见一类解,但数学有时会告诉你还有新的解,你不能忽视它,而是解释这些不期而至的解,这只是一个简单的例子,由此你可以理解第二个解的意义

耶鲁公开课 - 基础物理课程节选

And we want to help you learn how to map a problem into a class of algorithms of some efficiency That's our goal.

学会如何将一个问题,映射到一类,提升效率的算法中去,这就是我们的目标。

麻省理工公开课 - 计算机科学及编程导论课程节选

So Mara's going to be the person who will see you after class and she will take the problem sets that you have submitted before class and she'll give you the graded ones after class.

玛拉将是你们的课后辅导老师,她会批改你们上课前交给她的作业,课后她会将批改后的作业发还给你们

耶鲁公开课 - 基础物理课程节选

Welles said, forgive me for repeating myself from a previous class, Welles said the problem with Citizen Kane is that it just look like a young film maker trying to set proof to the world that he can make movies. That's exactly what it was.

请原谅我,又要重复上次课上的话，威尔斯说，《公民凯恩》的问题在于,它看起来就像是一个年轻的电影制作人,试图去向世界证明,他能够做电影，的确是这样。

麻省理工公开课 - 电影哲学课程节选

This solves a major problem which I'm going to talk about just at the beginning of class here in a slide or two, is how to get DNA into cells?

这解决了我要讲到的一个主要问题,就是在这节开始的一两张幻灯片中要讲的,怎样将DNA导入细胞的问题

耶鲁公开课 - 生物医学工程探索课程节选