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

There is a plurality of solutions that conform to the boundary conditions, which is that the system must be bound.

这有许多解决方式,来遵守这个有界条件，那个系统必须是有界的。

麻省理工公开课 - 固态化学导论课程节选

So, this observation is equivalent to saying that there must be something that is path independent.

这个表述相当于说,一定存在某个物理量是与路径无关的。

麻省理工公开课 - 热力学与动力学课程节选

That is to say, if something causes literature, there must be some sort of authority behind it and therefore we find ourselves asking, "What is an author?"

即是说，如果文学有缘由的，它的背后一定存在作者,所以我们会问，“作者是谁？“

耶鲁公开课 - 文学理论导论课程节选

And that the fact that it split into two was telling them that there must be some new property to the electron, and what we call that now is either being spin up or spin down.

它能一分为二的,事实告诉我们,电子一定有某种新的性质，我们叫它自旋向上或者自旋向下。

麻省理工公开课 - 化学原理课程节选

There must be fundamental reasons for it and I wanted to go over some of the fundamental reasons why we have banks.

它的形成必有其根本的原因,下面我就阐述银行产生的一些基本原因,为什么会有银行

耶鲁公开课 - 金融市场课程节选

And so, since we clearly do feel things, there must be more to us than a physical object."

因为我们拥有感觉事物的能力,所以我们一定比物理对象高级

耶鲁公开课 - 死亡课程节选

It's kind of--there must be something in cooking like that -use cornstarch or something, a filler -I don't know--just to make--give something body.

估计和烹饪的道理一样,用淀粉或某种填充物,我也不清楚,反正是进行塑形

耶鲁公开课 - 聆听音乐课程节选

And so tradition just said, "Well if there are three gifts,there must be three kings."

所以传说在流传过程中，人们认为，“有三样礼物，那必定有三位国王“

耶鲁公开课 - 新约课程节选

There are problem in that a horse must be treated when we study rigid bodies.

当我们学习刚体的时候,把马看做什么就是个问题了

耶鲁公开课 - 基础物理课程节选

And indeed there must be virtually a ritual of that recognition.

实际上还要有承认其地位的某种仪式

耶鲁公开课 - 美国内战与重建课程节选

If there is atmosphere in the passage I'm about to quote from Macbeth, it must be atmosphere of a certain kind and there for a certain reason.

如果下面这篇《麦克白》里的选段有所谓的“气氛“,那这种气氛一定因为某种原因以某种形式存在着。

耶鲁公开课 - 文学理论导论课程节选

No condition imposed from the beginning that there must be quantized states.

一开始就没有加限制条件,就必须是基态的。

麻省理工公开课 - 固态化学导论课程节选

Even though we have a noun, the smile, that if you're not careful might lull you into thinking there must be a thing, the smile.

即使我们有笑容这个名词,如果你不够谨慎,可能会想当然地认为,一定存在着笑容这一事物

耶鲁公开课 - 死亡课程节选

And what they could come up with, what they reasoned, is that there must be some intrinsic property within the electron, because we know that this describes the complete energy of the orbital should give us one single frequency.

他们想到着一定和，电子的本征性质有关，因为我们知道这个轨道的,完整描述会给出单一的频率。

麻省理工公开课 - 化学原理课程节选

Must there be something outside the body that controls the body?

一定有某种物质在体外操控我们的躯体吗

耶鲁公开课 - 死亡课程节选