If you look at the history of U.S. Taxes, the very simple history is World War One and World War Two.

如果你看一下美国税收历史，里面提到了一个典型的时期,就是一次世界大战和二次世界大战的时候。

耶鲁公开课 - 金融市场课程节选

One is if you have to coordinate how you're going to give this vaccine to two million children across the U.S.

首先必须协调合作,如何才能将疫苗,分发给全美国二百万孩子

耶鲁公开课 - 生物医学工程探索课程节选

Well, it's not just in the U.S., essentially every--I don't know if there's any exception.

当然不仅仅是在美国,实质上是每个...我不清楚是否有特例

耶鲁公开课 - 金融市场课程节选

I forget who--it may have been Charles Seller who said if you want to see the Market Revolution happening go study the Archives of the U.S. Patent Office.

我忘了是谁说的,大概是查尔斯.塞勒,他说,若你想看看市场革命是怎么发生的,就去研究美国专利局的档案吧

耶鲁公开课 - 美国内战与重建课程节选

I don't know if any of you watched tennis recently, but the U.S. Open has been shown and there's an Oreo advertisement with the William sisters and so you--that's why people know about these foods.

不知道你们最近看没看网球赛,美国网球公开赛上有一则奥利奥广告,是由威廉姆斯姐妹做代言的,人们以这种方式听说这类食品

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

That's the some of delta u in these two paths and if we look at delta u in just path A, it's zero.

这是这两条路径△U的和,如果我们要看路径A的△U，它也是零。

麻省理工公开课 - 热力学与动力学课程节选

So one of the things that the Allies very specifically wanted to do in World War II was to hijack one of these devices, take it from a U-boat because if they had this physical machine, certainly can they start decrypting then the German messages.

所以同盟国在二战中想做的一件事,就是劫持其中一个装置，携带在U型潜水艇中，因为如果他们拥有了这种物理装置，他们就可以解码,德国人的密文。

哈佛公开课 - 计算机科学课程节选

The Bank of England if you were a little bank somewhere in the U.K.

英格兰银行,如果你是英国的一家小银行的话。

耶鲁公开课 - 金融市场课程节选

If we looked in 1950, this is the incidence of paralytic, or the worst form of poliomyelitis in the U.S.

让我们回首一九五零年,这表示的是在美国因脊髓灰质炎,所致瘫痪的发生率

耶鲁公开课 - 生物医学工程探索课程节选

In contrast, if you look at a U.S.City, ten years ago in 1997 for example, then people still died but they didn't die predominantly from infectious diseases.

相反,我们看美国的城市,例如在十年前,即一九九七年,人们还是会死亡,但是最主要的死因不再是感染性疾病

耶鲁公开课 - 生物医学工程探索课程节选

In other places, infectious disease is a much bigger part of their life and a much greater risk of death from infectious diseases and parasitic diseases if you live in places other than the U. S. or Western Europe, for example.

在其他地区,感染性疾病,对当地人们的生活构成了更大威胁,他们死于感染性疾病或者,寄生虫之类疾病风险更高,如果你生活在,美国或欧洲之外的地方的话

耶鲁公开课 - 生物医学工程探索课程节选

U And then if we can also determine delta u, then we know this, we know delta u is q plus w w, then we can determine work as well, right?

然后，如果我们也能定出△,然后我们知道这个,我们知道△U等于q加？

麻省理工公开课 - 热力学与动力学课程节选

If you want to calculate a change in delta u.

我们计算Δu的路径。

麻省理工公开课 - 热力学与动力学课程节选