艾萨克·阿西莫夫在设计他的机器人三定律时，避开了整个道德概念。

Isaac Asimov evaded the whole notion of morality in devising his three laws of robotics.

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它完全把电脑背景的概念提升到了艺术层面，并且每周都有另一位出色的插画家或设计师登场。

It completely elevates the idea of a computer background into art, and every week features another awesome illustrator or designer.

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这个概念同样适用于设计。

The same concept applies to design.

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As every time we introduce a new programming concept, we'll relate it back, as we have been doing consistently, to defensive programming.

我们每次介绍一个,新的编程概念的时候，就会和以前讲的联系起来，就和我们介绍防卫性程序设计一样。

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It's a bad habit to get into, because when you come back to it, it may haunt you later on down the road. So really get into that notion of trying to be defensive as you program.

来运行程序的时候,错误就会出现缠住你了,因此现在我们真的要培养,在程序中有防卫性设计的概念。

麻省理工公开课 - 计算机科学及编程导论课程节选

It's not easy to devise this and the concept is very simple.

设计保单并不那么容易,仅仅一条概念太单薄了。

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