When you don't have to worry about criteria like that ordinary, mechanical energy rules supreme, and that's dictating where equilibrium lies.

如果你不担心像这样的要求,通常的机械能就占据主要地位，并且决定平衡位于何处。

麻省理工公开课 - 热力学与动力学课程节选

And so ultimately one of the messages we'd like to send today is that if you are the type who's kind of on-the-fence don't think this is for you, worried about hurting your GPA or anything like that.

最终，我们想告诉你们的是,如果你是那种对分数不太在意的人,这种打分制就不是为你准备的，担心影响你的学分绩点之类的东西。

哈佛公开课 - 计算机科学课程节选

You wouldn't think I would have, I don't have -- all right, be that way about it.

你不用担心我需要什么，我不需要什么--好了，先这么做。

麻省理工公开课 - 计算机科学及编程导论课程节选

I think part of the message here is that... I want to mention just one more, I'm afraid we're out of time But believe it or not, I could talk to you for another 24 hours.

我觉得需要传达的信息是。。。,我想要再次重复一遍，我担心时间不够了,信不信由你，我可以跟你再聊,24个小时。

普林斯顿公开课 - 人性课程节选

In 1988, we asked people in Los Angeles, are you worried that unless I buy now I won't be able to afford a house in the future?

如果在1988年问洛杉矶居民,你担不担心,如果现在不买房,以后恐怕会买不起

耶鲁公开课 - 金融市场课程节选

We did not yet have good methods for screening blood to look for HIV, we didn't have the ELISA technique that I--we talked about in section a few weeks ago and so there was a great concern that there might be other diseases that you'd be passing on from-- unknowingly from this subset of patients that you're isolating the vaccine from.

那时我们还没有一种好的方式,来从血液中筛查出HIV,也还没有ELISA技术,该技术我们在几周前的一个章节中谈到过,因此,那时仍存有,很大的担心,那就是你有可能,在不知情的情况下,被那些病人,感染上其它疾病,因为疫苗就是从他们身上提取出来的

耶鲁公开课 - 生物医学工程探索课程节选

You should not, at this point be worrying about those things.

在这一点上你,不应该为此担心。

麻省理工公开课 - 计算机科学及编程导论课程节选

What is this? This is a wonderful piece of abstraction. It is saying, you don't need to know squat about what's inside the body of this function. You don't have to worry about the parameter names, because they're going to be preserved, you don't need to worry about how I'm doing it, this tells you how you can use this, in order to use it correctly. Of course, I can then close it off, and off we go.

但是这能告诉你一些信息,这是什么？,这是一段完美的抽象,它的意思是你不需要知道,这个函数的内部构造，你不必担心参数是否重名，因为它们已经被预存了,你不需要担心我如何使用它,它告诉了你你该如何操作，从而正确的使用它，当然我也可以把它关掉。

麻省理工公开课 - 计算机科学及编程导论课程节选

But if most people who are good borrowers, who know what they're doing, want these, they want a conventional thirty-year mortgage because it will fix a mortgage payment for the rest of the thirty years and you have nothing to worry about.

但是如果大多数人是优质借款人,他们知道自己在做什么,他们会选择普通30年期抵押贷款,因为在剩余的30年时间里,抵押贷款的偿付是固定的,你不需要为它担心

耶鲁公开课 - 金融市场课程节选