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

It is not an SI unit because it is not a multiple of 10 to the 3rd, but I like the angstrom.

它不是国际制单位，因为它不是,10的3次方进制，但我还是喜欢这个单位。

麻省理工公开课 - 固态化学导论课程节选

And typically, I'm not going to just search once in a list, I'm going to search multiple times.

还要考虑我要如何去使用它？,我不会对一个列表只做一次搜索。

麻省理工公开课 - 计算机科学及编程导论课程节选

You have to inject it multiple times because the first blip that you get in immune response is not very high, you have to boost and often you have to boost again in order to get a high enough response to be protected.

你必须得进行多次注射,因为第一次注射,无法使免疫系统产生强烈反应,你得要增强免疫,通常还得再增强一次,以使反应足够强烈,从而起到保护作用

耶鲁公开课 - 生物医学工程探索课程节选

On the other hand, am I likely to only search a list once? Probably not. There are going to be multiple elements I'm going to be looking for, so that suggests that in fact, I want to amortize the cost.

我可能就搜索一次么？,可能不是，可能我要找好多个元素,这样的情况下,我们就能分摊开销了，这告诉我们什么？这意味着。

麻省理工公开课 - 计算机科学及编程导论课程节选