The researchers say if people want to avoid heart disease, they should be more aware of how much sugar is in their food, and reduce it,if need be.

VOA: standard.2010.04.25

If need be, occupy a throne, Where nobody can call you crone.

如果需要，占领一个王位，哪里没人会叫你老妇人。

耶鲁公开课 - 现代诗歌课程节选

If you're a little bit stressed out, and you really just need to be alone,

如果你身处于紧张的压力之下，你也许想要一个人待着，

I need 课堂 - SpeakingMax英语口语达人

And he says more lives can be saved in the future if the programs continue to receive the money they need.

VOA: special.2010.03.10

If you or I buy it, it costs $51 per dose, you need three doses to be effective.

如果你或者我购买它,每支将花费五十一美元,你需要购买三支才会起效

耶鲁公开课 - 生物医学工程探索课程节选

The new capsule could also be used if astronauts need to leave the station in an emergency.

VOA: special.2010.04.28

You need to, if you want something to be printed out inside your code, you need to tell the machine to do that.

你需要，如果你想要,在代码中显示一些东西的话，你需要告诉机器这么做。

麻省理工公开课 - 计算机科学及编程导论课程节选

They said he would need campaign money from business if he expected to be elected president again.

VOA: special.2010.05.27

So we'll say hello to you later, if need be.

所以我将随后跟你说hello，如果需要。

哈佛公开课 - 计算机科学课程节选

The Food and Drug Administration says there would be no need for special labeling if the salmon is found to have the same basic contents as other fish.

VOA: special.2010.10.05

If asked the case, then we as a business school need to be thinking about if it is changing the entire way which we proceed to do business.

被问到这个问题时,我们作为商学院要思考,技术是否完全改变了,今后教育的形式。

麻省理工公开课 - 媒体、教育、市场课程节选

And that if we want a positive earth for future generations, we all need to make commitments to be change agents so that we don't destruct our natural resources."

VOA: special.2010.01.21

So, if you can't immediately know, and you don't all have periodic tables in front of you, so that's fine, but if you have a periodic table in front of you, you need to be able to count valence electrons, so work on that if it doesn't come naturally to you in terms of figuring that out.

如果你不能马上想到，而且你手上没有周期表，那还好，但如果你面前有一张周期表，那你就得具备从中查出价电子个数的能力，如果你不能自然而然地想到,请在这方面多下点功夫。

麻省理工公开课 - 化学原理课程节选

If tires could be improved, automobiles would need less fuel.

VOA: special.2010.02.09

If he's gone above the monopoly price we need to be a little bit more careful.

如果它高于垄断价格了,我们需要小心点

耶鲁公开课 - 博弈论课程节选

He adds,concerns about the war here need to be addressed if public trust in British politics was to be restored.

VOA: standard.2010.01.02

Are there things that need to be explained that we could explain if we posited the existence of a soul, an immaterial object, above and beyond the body?

有没有这样的事物,只有假定灵魂,这种凌驾于肉体之上的,非物质实体存在,才能对其进行解释

耶鲁公开课 - 死亡课程节选

"Obviously,if you need more treatment, you need more money to be able to give people access to the treatment."

VOA: standard.2010.07.17

To be honest, I'm not sure if you need to have gone to undergraduate

老实的说，我不确定你是否要有本科学历，

想成为律师的话 - SpeakingMax英语口语达人

If they hire me I go to what boat they want and I would be go because I need to make money for living you know."

VOA: standard.2010.05.15

Well of course it's an important value to have in general that in order to be good neighbors in the world we need to understand it, we need to-- if we're going to be good citizens in the world we have to know what other people are doing and what's affecting us.

总的来说,它的重要之处在于,为了成为世界上其他国家的好邻居,我们要懂得,如果要成为世界上的一个好公民的话,我们得知道其他国家的人在做什么,是什么在影响我们

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And there will be grumbling on the left if you want to get something done, but they ultimately need almost all of their party because they are going to get almost no Republicans to come along with them.

VOA: standard.2009.09.28

That's important, too, because you need to be able to tell if the virus is present in the human population.

这一点也非常重要,因为你要能够分辨出,人群中是否有人感染了天花病毒

耶鲁公开课 - 生物医学工程探索课程节选

"It's physiological and it's emotional." "Physiologically,we have a tendency when we come into a situation that seems dangerous we get a lot of chemicals flowing through our bodies to help us stay alert, to be able to act if we need to act.

VOA: standard.2010.07.01

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

We want to make sure that if the students would not to be given the time out to learn, we need to provide a vehicle or that they can take the advantage of learning in their world context to actually put the theory into practice.

为了确认学生是否会,腾出时间学习，我们需要提供一个工具,让他们在生活的情境中,利用学习,将理论用于实践。

麻省理工公开课 - 媒体、教育、市场课程节选

So if the argument's going to be, "We need to posit the existence of a soul in order to explain creativity," Again, that just seems wrong.

所以如果这个论证要说,我们必须假定灵魂的存在,才能解释创造力,再一次,这看起来是错误的

耶鲁公开课 - 死亡课程节选

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