But he says there must be a "clear timetable" for talks about protecting their security without threatening other people's security.

VOA: special.2009.05.23

But it's a good story, Joule decided that there must be a direct relationship between work and heat.

所以说，这只是一个不错的故事而已，焦耳认为功和热之间,一定具有某种直接的联系。

麻省理工公开课 - 热力学与动力学课程节选

I wish I had more time, but I must be going.
I wish I had more time, but I must be going.

I wish 课堂 - SpeakingMax英语口语达人

But you must be careful. It is easy to get lost in the waves of moving sand especially during sandstorms.

VOA: special.2010.01.04

qB This must be heat q B, right. So again, but now let's also look at our special function.

这个不是，这应该是热量，对吧？所以又一次，这些是我们熟悉的。

麻省理工公开课 - 热力学与动力学课程节选

But she says it must be shown scientifically that cord blood stem cells cause improvement, and not other reasons.

VOA: special.2011.02.01

Well, the ones in director light must not be so reflective but be kind of of dark surface.

然而，直接处于光线之下的瓷片不会如此反光,它们的表面较暗。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

The president said reform must be comprehensive, dealing not just with future immigrants but also those here now.

VOA: special.2010.07.03

But for all that, despite the popularity of that view, I'm inclined to think it must be wrong.

虽然观点受到追捧，我倾向认为它一定是错的。

耶鲁公开课 - 死亡课程节选

We are not hostile to them. But we believe they must be controlled to serve the public good."

VOA: special.2010.08.12

He must know how to use religious passions and sentiments but not be used by them.

他必须懂得如何利用宗教热情以及,宗教情绪而不是被它们所控制。

耶鲁公开课 - 政治哲学导论课程节选

But the Global Heritage Fund says increasing the number of visitors to an area must be done responsibly.

VOA: special.2010.11.03

But still, it must be with his own consent, I.E. The consent of the majority, " giving it either by themselves, or through their representatives."

但是这仍须得到他自己的同意，即得到大多数的同意，由他们自己或选出的代表所表示的大多数同意“

耶鲁公开课 - 公正课程节选

But he also said the government must be willing to spend extra money to prevent people from starving.

VOA: special.2011.03.10

nd this convergence can never be precisely pinpointed, but must always remain virtual, as is not to be identified either with the reality of the text or with the individual disposition of the reader."

而我们永远无法指出，“…,这种会合的确切位置，这个空间会一直以虚拟形式存在,不论是客观的文本,还是带有个人特征的读者都无法辨别它“

耶鲁公开课 - 文学理论导论课程节选

But now -- she is dead,of course, but it is all right it must be all right,somehow.

VOA: special.2009.10.31

But if they're holy, they must be pure.

蛋如果它是神圣的，它必然是纯洁的。

耶鲁公开课 - 旧约导论课程节选

But red meat and meat that will be sold in other states must have federal inspection.

VOA: special.2010.08.03

That must be an interesting story, but I just have it here, and I think the poem tells you something about engineering if you go through it - and the problems of engineering.

这一定是个有趣的故事,我就这么一讲,我想这首民谣告诉了我们,关于工程的一些东西,如果做工程的话,关于工程的一些问题

耶鲁公开课 - 生物医学工程探索课程节选

But for football glory, the World Cup must be a part of the journey.

VOA: special.2010.06.09

Now, I don't know how far back it goes but it must be that in ancient times some people would say, all right you're going to be doing more work or you're contributing more to this enterprise, we'll give you a bigger share of the profits.

我不知道这能追溯到什么时候,但在古时候肯定有人说,好吧,你比别人干得多,你对公司的贡献更大,我们会把收入的大头给你

耶鲁公开课 - 金融市场课程节选

But with the Confederacy being almost lost, something decisive and great must be done.

VOA: special.2010.01.07

but you have a prior engagement and you really must be going, you can say,

但是你已有约在先，你真的必须走了，你可以说，

I wish 课堂 - SpeakingMax英语口语达人

But in other cases, the mines must be carefully dug out by hand.

VOA: special.2010.05.03

We'll give it a name, but by linking that T to that T, we can also figure out the same T must be exerted on this one by Newton's third law, because if this block is the only one that could be pulling this rope with T.

我们先给它命个名,把这个 T 和那个 T 联系起来,利用牛顿第三定律,我们可以知道这个 T 也一定作用在这个物体上,因为如果这个物体是唯一,受到绳子拉力 T 的物体

耶鲁公开课 - 基础物理课程节选

But he also said Cuba must be treated as an equal.

VOA: special.2009.04.18

But since we've got free will, we must be something more than a merely physical object.

但由于我们拥有自由意志,我们必定不只是纯粹的物理对象

耶鲁公开课 - 死亡课程节选

He must be opposed to slavery, but not too extreme.

VOA: special.2009.06.11

He reasoned then that the charge, since he could vary voltage continuously but got a discontinuous variation in velocity, his conclusion was that the charge must be discontinuously attached to the droplet.

他推断出电荷，因为他可以不断地改变电压,但是得出了速度是在不连续变化着，他的结论是电荷,是间断地依附于液滴上的。

麻省理工公开课 - 固态化学导论课程节选

It must be metonymic--but wait! It is spoken by a voice.

它肯定是转喻的，但是等等，它是有声音的。

耶鲁公开课 - 文学理论导论课程节选