All right, so that notion of abstraction and we're going to come back to multiple times -- during the term-- and it's not just abstraction, -- it's the idea of a specification.

现在就试试,这就是抽象的概念,我回过来说，我们将要多次提到这个术语。

麻省理工公开课 - 计算机科学及编程导论课程节选

You have to pass it as input to another function, as you'll see as possible in problem's Set One specification, but it's ultimately up to you.

你需要把它传给另一个函数当入参，就像你们将,在习题集1中可能看到的，但它最终取决于你。

哈佛公开课 - 计算机科学课程节选

Before we do that, or as you do that, let's look at Fib 1. The key thing to notice about Fib 1 is that it has the same specification as Fib.

我们做之前，或者当你在思考的过程中，让我们看看Fib，1，Fib1重要注意的,关键的一点就是,他和Fib的格式描述是一样的。

麻省理工公开课 - 计算机科学及编程导论课程节选