And will make mistakes. And therefore, you write your programs so that catastrophes don't occur when those mistakes are made.

就是人是很愚蠢的，会犯错误的，因此，你要这样设计你的程序,以达到当犯错误时避免大事故的目的。

麻省理工公开课 - 计算机科学及编程导论课程节选

In principle, this value, this efficiency, can approach 1 as the low temperature approaches absolute zero.

这个值，效率，当低温热源的温度1,是据对零度时可以达到一。

麻省理工公开课 - 热力学与动力学课程节选

For example, when I returned to China, I remember we had less than 10 million Internet users, and today we have more than 338 million Internet users.

举例来说，当我回到中国，当时中国网民人数不足一千万，而现在网民数达到了3。38亿。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

So, when we think about a bond length, this is going to be the length of our bond here, that makes sense because it's going to want to be at that distance that minimizes the energy.

因此，当我们考虑一个键的长度的时候，这就应该是我们的键长，这是合理的,因为体系会在核间距达到这一距离时,能量到达最小值。

麻省理工公开课 - 化学原理课程节选

I want to talk about the goal of the course, what it is you'll be able to do at the end of this course when you get through it, and then I want to begin talking about the concepts and tools of computational thinking, which is what we're primarily going to focus on here.

我想讲讲课程目标，也就是当你们完成了这门课时,应该达到的程度，接下来我想开始谈谈,计算思维的概念和方法，即这门课程的核心内容。

麻省理工公开课 - 计算机科学及编程导论课程节选

Another fact is that we are told that when Alexander the Great went out to conquer the Persian Empire, and as far as he was concerned,to conquer everything he could reach, he carried with him a copy of the Iliad which it is alleged he put under his pillow.

另一个事实是,据说当亚历山大大帝,出征去征服波斯帝国时,对他而言,就是去征服他能达到的一切,他随身带着一本《伊利亚特》,据说放在他的枕头底下

耶鲁公开课 - 古希腊历史简介课程节选

Now, if I was a person that was designing a vaccine and I noticed that this was the response that it got, that antibodies were produced, they reached some intermediate level, they started to fall, I would say, "Well I haven't stimulated the immune system enough, let me re-boost, let me give another dose of antigen."

现在,如果我正在研究一种疫苗,我注意到机体会对这种疫苗产生应答,也就是会产生抗体,当抗体浓度达到中等水平后,就开始下降,就可以说,疫苗对免疫系统刺激还不足,我需要提高抗原浓度,让我再把剂量再加大一倍

耶鲁公开课 - 生物医学工程探索课程节选

So I said before when we were talking about single atoms, we always define the zero energy as when an electron was actually ejected, but now, when we talk about chemical reactions taking place, it's very, very rare that we're actually going to be talking about anything that gets to this point here.

我之前说过，当我们讨论单个原子的时候，我们总是把零点能,定在电子被发射出去以后，但是现在，当我们讨论化学反应发生的时候，非常非常罕见出现，确实达到,这种程度的情况。

麻省理工公开课 - 化学原理课程节选

As T2 goes to zero, the cold reservoir, then this goes to zero and our efficiency approaches one.

是当T2达到零，也就是低温热源，达到零度的时候,效率可以达到一。

麻省理工公开课 - 热力学与动力学课程节选