"What is incredibly positive about the way the demonstration has come together is it is different groups of workers,students, different people that are affected by the crisis that is kind of gripping the system, actually coming together to say that collectively we can fight back and argue to put out priorities first,".

VOA: standard.2009.03.28

That you put together diseases of the heart, cancer, stroke, and then chronic respiratory diseases, those first top four are accounting for a huge number of deaths.

心脏病,癌症,中风,和慢性呼吸道疾病,这四大疾病加起来造成了大量死亡

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So that's just a little bit of a check for yourself, and it should make sense because what you're doing is you're calculating the difference between energy levels, so you just need to flip around which you put first to end up with a positive number here, and that's a little bit of a check that you can do what yourself.

所以你们总要确保括号，离得这项是正的，这是你们自己,可以做的检查，这事很有道理的，因为你们做的是计算能量差,所以你需要调整顺序来保证一个正数，这是你们自己可以做的检查。

麻省理工公开课 - 化学原理课程节选

And that's why all those reactions, first of all, in some sense what I put up was kind of a trivial statement in actual fact saying they all happen spontaneously because I didn't specify what we were starting with exactly, what concentrations we were starting with.

首先这就是为什么所有的这些方程，在某种程度上,我举得这些例子说它们自发产生,这是一个琐碎的陈述,因为我没有说明，我们从什么地方开始。

麻省理工公开课 - 热力学与动力学课程节选

The first step is to take the DNA fragments that we're interested in and put them into this vector by basically cutting open the double stranded DNA and inserting the gene that we like in the region where we've cut.

第一步是把我们感兴趣的DNA片段,整合到这个载体里,基本的方法是切开质粒这个双链DNA,把我们想要的基因插入切开的区域

耶鲁公开课 - 生物医学工程探索课程节选