So exactly how much exercise do you need to do to gain all of these great health effects?

VOA: special.2010.06.08

You need to train a pig and you need to do so through operant conditioning.

你需要运用操作性条件作用来训练一头猪。

耶鲁公开课 - 心理学导论课程节选

So I need to do something intelligent to exercise my brain.

所以我得做点开动脑筋的事情让大脑也得到锻炼。

I feel like 实战 - SpeakingMax英语口语达人

To do so,a teacher would need to have eyes in the back of his head.

VOA: special.2009.09.06

So if we look at sulfur, what we need to do is take the valence electrons in sulfur, and there are 6.

因此如果我们来看硫原子的话，我们需要做的是,将硫的价电子，有六个。

麻省理工公开课 - 化学原理课程节选

"It is everywhere. So you do not need to have a party to get the swine flu.

VOA: standard.2009.12.18

I know it's boring, but we need to do it so you know what the ground rules are.

我知道这很无聊，不过为了让你们了解规则,我们必须得做这个。

麻省理工公开课 - 计算机科学及编程导论课程节选

So we need to do that for the sake of peace and security,".

VOA: standard.2009.10.20

So if you want to do well in 1504-- you'll know what you need to do, right?

如果各位想学好1504这门课-,你们知道该怎么做了，是吗？

哈佛公开课 - 幸福课课程节选

He told them it is critical to continue the effort to transfer skills and tools to Afghans so foreigners do not need to have a permanent presence there.

VOA: standard.2009.09.04

So I need to relate this to what I do want.

所以我要把这个和我想要的联系起来。

麻省理工公开课 - 热力学与动力学课程节选

So it's worth knowing in a general way what you need to do to earn a good grade in discussion section and here the answer is, perhaps the obvious one, you need to participate.

现在值得让你们知道什么是你们要做的,去得到好的分数在课堂讨论并且答案是，也许最显然的一个是，你需要去参与。

耶鲁公开课 - 死亡课程节选

And it's pretty expensive to do so because I think they know you need to do it.

这样做很贵，因为我想他们知道你需要这么做。

公共交通更方便 - SpeakingMax英语口语达人

So you need to lose weight? You can do it bed.

想减肥吗,在床上减吧

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 what we want to do now is to begin to think about counting measures, and we're going to do this by staying with this piece of Louis Armstrong here, and we need to be able to count measures so that we can figure out the syntax of music.

现在我们想做的,是大家开始想一下怎么数小节,我们通过,路易斯·阿姆斯特朗的这段乐曲,来做这个活动,我们需要能够数好小节才能弄清楚,音乐的句法

耶鲁公开课 - 聆听音乐课程节选

so I'll need to do math and science classes for the rest of my college career.

所以我必须在我余下的学生阶段完成数学和自然科学的课程。

伯克利的课程计划 - SpeakingMax英语口语达人

Yes, so I think that developing countries do need to participate in a big way

我认为发展中的国家在这方面应该发挥重大作用，

全球变暖与国力 - SpeakingMax英语口语达人

So what I need to do then is I need to figure out what is Player 1's best response for each possible choice q2 of Player 2.

所以我们要先找出,在参与人2的每个可选策略q2下,参与人1的最佳产量

耶鲁公开课 - 博弈论课程节选

so I have some idea of what I'm going to need to do.

所以，我明白自己需要做些什么。

就业的方法 - SpeakingMax英语口语达人

People do need money and they go into business to make money; so let's make it clear, that's what the company is going to do.

人们需要钱,于是通过投资赚钱,明确的说这就是公司的任务

耶鲁公开课 - 金融市场课程节选

What it's designed to do is to give you the resources you think you need so that I can focus on measuring whether you'velearned anything as opposed to whether you've remembered, memorized anything, OK, and of course, something to calculate with.

这样做的目的是给与你们,认为需要的资源，这样我就能专心于,衡量你们是否已经学到了什么,而不是你们是否记得了什么，背下了什么，还有，当然，要计算一下。

麻省理工公开课 - 固态化学导论课程节选

So those are the last two things we really need to do.

这是我们今天需要做的最后两件事。

耶鲁公开课 - 旧约导论课程节选

So I'm gonna need to do one comparison.

所以我需要进行一次比较。

哈佛公开课 - 计算机科学课程节选

This says, I need a second argument to it, and that second argument better be a point so I can do the comparison.

这里我需要第二个参数，第二个参数最好是一个点,这样我就能做比较了。

麻省理工公开课 - 计算机科学及编程导论课程节选

So for example, if we think about fluorine, 1 s 2 2 s 2 2 p 5 that has an electron configuration of 1 s 2, 2 s 2, 2 p 5, so all we would need to do is add one more electron to get the same configuration as for neon.

比如，如果我们考虑氟原子的话，它的电子排布是，因此我们所需要做的就是给它加上一个电子,使得它与氖原子的电子排布相同。

麻省理工公开课 - 化学原理课程节选

Now to make that happen, it's not adiabatic, right. If I wanted to do that, I'd need a heating element or something to cool, so I could make that temperature change happen, right.

要实现这点，它就不会是绝热的，对吧，如果我想做到这点,我需要一个加热元件或什么制冷的东西,这样我才能让温度变化。

麻省理工公开课 - 热力学与动力学课程节选

Now as I say, I believe that when push comes to shove, we do need to get clear about both of those questions and so that's going to take the first several weeks of the class.

如果想深入了解这个话题,就必须弄清楚这两个问题,这就是头几周课的主要内容

耶鲁公开课 - 死亡课程节选

So what we need to do here is use the Rydberg formula, and actually you'll be given the Rydberg formulas in both forms, both or absorption and emission on the exams.

我们需要用到Rydberg公式，事实上，在考试时,我们会给你们Rydberg公式的两种形式。

麻省理工公开课 - 化学原理课程节选

Doesn't need to be, so, what should I do about the upper bound here?

不必改下边界值，因此,我该对上边界值做个怎么样的改动呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

So let me write that down, it's how much memory do I need to complete a computation.

让我把它写下来,当我计算的时候。

麻省理工公开课 - 计算机科学及编程导论课程节选