So the most basic answer that doesn't explain why is just to say well, the s orbital is lower in energy than the p orbital, but we now have a more complete answer, so we can actually describe why that is.

所以最基本的答案是那没有解释,所以我们事实上可以描述，为什么是那样，但是我们现在有一个更复杂的答案，又是有效电荷量。

麻省理工公开课 - 化学原理课程节选

To do that, we need to describe: not only, what are the primitives, but how do we capture things legally in that language, and interact with the computer?

为了达到这个目的，我们需要描述：,包括程序基本的东西，以及怎么在这种语言中，做我们想做的事情并和计算机交互？

麻省理工公开课 - 计算机科学及编程导论课程节选

Numbers are there to do numeric things, strings are our fundamental way of representing textual information.

数字是用来描述数值的，字符串是表现,文本信息的基本方式。

麻省理工公开课 - 计算机科学及编程导论课程节选

What we're saying is, in order to do computation, we want to describe recipes, we want to describe this sequence of steps built on some primitives, and we want to describe the flow of control that goes through those sequence of steps as we carry on So the last thing we need before we can start talking about real programming is, we need to describe those recipes.

我们在说，为了做计算，我们想描述一个方法，想描述建立在,相同基本类型上的步骤序列，而且我们想描述经过我们设计的,步骤的序列的，控制流程,因此我们开始谈论真正的编程之前,的最后一件事是，我们需要描述一下那些方法。

麻省理工公开课 - 计算机科学及编程导论课程节选