Now the question you'd need to ask yourself is how do you know this didn't happen to you last night?

现在你要问自己的问题是,你怎么知道,昨晚你没发生这样的事？

耶鲁公开课 - 死亡课程节选

Now, recruiting is tremendously important because you need to have a certain number of settlers to make the settlement viable.

招募是极其重要的,因为你需要有一定数量的移民,来维持居住地的运转

耶鲁公开课 - 古希腊历史简介课程节选

Let's hear first, now we need to begin to investigate the reasons why you think it's the right thing to do.

我们先来听听大家的说法，探究一下为何,你们会认为这是正确的选择。

耶鲁公开课 - 公正课程节选

Well, if you're implementing a computer that needs to represent information now all you need is something like electricity which can be on or off, on or off.

好吧，如果你正用一个电脑,来表现表达传递信息的功能,你就需要,像电开关一样的物体。

哈佛公开课 - 计算机科学课程节选

And so I joked, badly, I'll agree, at the end of last lecture, that we can just stop now, go straight to the final exam, because this is all you need to know.

所以我在上次演讲快结束时说了个拙劣的笑话，我会同意我们可以到此为止,直接进行期末考试，因为这些是你们需要知道的所有内容。

麻省理工公开课 - 计算机科学及编程导论课程节选

But for right now, all you need to know is that all of these generals, although they were Macedonians and spoke Macedonian and not themselves Greek, but they had, just like Alexander, they had adopted Greek language, Greek culture.

不过目前，你们只要知道所有四位将领，虽然都是马其顿人，说马其顿语,不是希腊人，但是他们和亚历山大一样，使用希腊语，希腊文化。

耶鲁公开课 - 新约课程节选

Now, why do you need a cell mediated immune response if you have an antibody response?

为什么你还要有细胞免疫反应呢,你已经有抗体应答了啊

耶鲁公开课 - 生物医学工程探索课程节选

Now, once you start thinking these thoughts, there's no need to restrict yourself to emotions.

当你开始萌生这些想法时,你会发现,不止情绪如此

耶鲁公开课 - 死亡课程节选

Now you need to define the temperature scales.

现在你需要定义温标。

麻省理工公开课 - 热力学与动力学课程节选

Now, there's some things you don't actually need your brain to do.

事实上,有些活动并不需要大脑的参与

耶鲁公开课 - 心理学导论课程节选

Right now, in kinematics, this is all you need.

目前,在运动学中,这些就足够了

耶鲁公开课 - 基础物理课程节选

Generally I can bear who is now Ambassodor said you need to have the engineers following 1 kilometers behind the troops when they entered to this areas to show the people that we were there, we were there to stay. That remains true.

我可以理解现任大使所说的,紧跟着军队之后，我们还需要工程师来建设这个国家,这些工程师进来之后，当地人民就知道我们在这里，我们要留在这里，而这也是事实。

普林斯顿公开课 - 国际座谈会课程节选

This is what's called the Bohr radius, and we'll explain - hopefully we'll get to it today where this Bohr radius name comes from, but for now what you need to know is just that it's a constant, just treat it like a constant, and it turns out to be equal to or about 1/2 an angstrom.

它叫做玻尔半径，我们后面会解释,希望我们今天可以讲到,波尔半径这个名称的由来，但现在你们只要记住,它是一个常数，只要把它当做一个常数对待，它等于,或者是1/2埃。

麻省理工公开课 - 化学原理课程节选

But now, when you need more, you can't just say I only want the best bottom land there is.

然而当你需要更多土地时,你不能张口就要这片地区最富饶的土地

耶鲁公开课 - 古希腊历史简介课程节选

But for now all you need to know is - that these four different kingdoms-- one was where we now have Greece, another one was where Syria is, another was Egypt, and then there was another further north, but that's not as important for us.

不过目前你们只需要知道,这四个不同的王国-,一个是当今的希腊，一个是当今的叙利亚，一个是埃及，还有一个在更北面的地方，不过对我们来说不是很重要。

耶鲁公开课 - 新约课程节选

Alright, now you kinda need to compare them all, right?

需要对所有的进行比较，对吗？

哈佛公开课 - 计算机科学课程节选

Now the bases, and you don't need to memorize the structures of these I'm going - I'm describing the whole molecule to you in its molecular detail and then we're going to simplify it down to a version that we can talk about more easily.

现在讲碱基,你不需要记住这些结构,我将给你们详述整个分子,的结构细节,然后我们把它简化为一个模板,使我们更容易讨论

耶鲁公开课 - 生物医学工程探索课程节选

Now we don't need the cow anymore because you could pass it from one person to another, and pass the immunity from one person to another.

由于它可以在人与人之间传播,就不再需要奶牛了,就可以把免疫力在人与人之间传播

耶鲁公开课 - 生物医学工程探索课程节选

Once you're doing this on your own, -- especially, for example, on exam 2, which is a ways down the road, you won't be able to look at those steps, so you need to make sure that you can go through them without looking at them, but for now we can look at them as we are actually learning how to draw the Lewis structures, and rather just go through them step-by-step, it's more interesting to do it with an example.

每当你要画一个路易斯结构的时候，特别是，比如，在第二次考试中，在不远的将来，你将看不到这张表，因此你需要确保自己在不看这张表,的情况下也能按照上面的流程来画，但是目前我们是可以看着这张表,来学习如何画路易斯结构的，而相比于一步一步地讲，通过例子来演示一下会更有意思。

麻省理工公开课 - 化学原理课程节选

For those of you just walking in now, you might not have a chance to get all of the thought process that you need in on this clicker question, because it is based on a Lewis structure, so we will go over it.

那些刚刚进来的同学，你们可能没有机会时间来回答,因为答案是基于Lewis结构上的,所以我们赶紧看一下。

麻省理工公开课 - 化学原理课程节选

I need to now put this float somewhere, and I'll put it in a variable called f that you can call it whatever you'd like.

我现在需要把这个浮点数放在哪个地方，然后我把它放在,一个叫做f的变量里,你也可以给这个变量取其它的你喜欢的名字。

哈佛公开课 - 计算机科学课程节选

I don't care how you do it on exams or on problem sets, but you do need to be aware that the 3 d once filled is lower in energy than the 4 s, and the reason you need to be aware of that is if you're asked for the electron configuration now of the titanium ion.

我不关心你们在考试或者,问题集中如何做它，但是你们的确需要知道3d一旦被填充,它的能量是小于4s的，你们需要知道这个的原因,是如果你现在被要求,写出钛离子的电子构型。

麻省理工公开课 - 化学原理课程节选

Now that's changing the more years that pass the more of you have 64-bit computers and the more servers have many, many gigabytes of RAM and so you need actually 64-bits, but for now let's assume a common system whereby a pointer just by definition of the homework is 32 bits.

现在计算机也在改变，也有更多的人,使用64位的计算机，更多的服务器有很多，很多G的内存，那样你就需要64位的，现在我们假设通常的系统中,根据家庭作业所定义的，一个指针为32位。

哈佛公开课 - 计算机科学课程节选