"We in President Obama's administration understand what it is like to go through a transition period.

VOA: standard.2009.10.20

We are going to now go into the atom and try to understand the scientific basis for this observed behavior.

我们现在要讲讲原子,并试着去理解这个观察行为,的科学原理。

麻省理工公开课 - 固态化学导论课程节选

So, Marsden came up with the model, and as you go through 8.02 and you understand electrostatics and electrodynamics, you'll be able to do this analysis.

后来马斯登提出了这个模型，就像你们通过8。02的考试一样2,你们学过了静电学和电动力学，你也能做这些分析。

麻省理工公开课 - 固态化学导论课程节选

Now because it is so important to understand how the neurons present the information, ? let me go into a bit more detail. Ok?

既然要理解,神经元传递信息是如此重要，我来更加详细地解释一下，好吧？

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

To understand India's economic growth acceleration you really have to go back about 25 years.

想要了解,印度经济的腾飞,你真的必须回过头,从25年前观察起。

普林斯顿公开课 - 国际座谈会课程节选

The second law is going to define entropy, and is going to tell us about the direction of time, something that conceptually we, clearly, understand but is going to put a mathematical foundation on which way does time go.

第二定律定义了熵，它告诉我们,时间的流向，虽然我们清楚地,知道这个概念,但还是要为时间流动的方向,建立一个数学基础。

麻省理工公开课 - 热力学与动力学课程节选

Now let's go inside the atom to try to understand what is going on.

现在让我们进人原子的部分，试着,理解那是怎么回事。

麻省理工公开课 - 固态化学导论课程节选

What I am going to do next day is go into the larger stoichiometry and understand the principles of mass balance and reactivity But before you go,hold it,I don't want you racing off.

下堂课我要做的是,讨论化学计量学，和,质量平衡很反应定律,但在下课之前，我不希望你们这么快走。

麻省理工公开课 - 固态化学导论课程节选