So we're to assume we can get to any piece of data, any instruction in constant time, and the second assumption we're going to make is that the basic primitive steps take constant time, same amount of time to compute. Again, not completely true, but it's a good model, so arithmetic operations, comparisons, things of that sort, we're all going to assume are basically in that in that particular model.

因此如果我们假设在恒定的时间内,我们可以取得任何一块数据,任何一种数据结构的话,我们要做的第二个假设就是,基本的原始操作计算花费的时间是恒定的,这个假设也不是完全正确的，但这个模型其实挺不错的，因此算法操作，比较，这一类的事情，我们在这个特定的模型中都假设是基本的,操作，花费的时间是恒定相同的。

麻省理工公开课 - 计算机科学及编程导论课程节选

or literary magazines or things of that nature.

或者是文学杂志，那一类比较学术的俱乐部。

有趣的课程 - SpeakingMax英语口语达人

I love Lisp, but Lisp is certainly in the category of a very weakly typed language.

我爱Lisp，但是Lisp当然,是属于在类型检查比较弱的语言一类。

麻省理工公开课 - 计算机科学及编程导论课程节选