These are setups of pieces on the chess board that have particular solutions. And they're very complex, and they have a kind of aesthetic form to them.

象棋有些设置是有专门的,解决方法的，很复杂，它们有一种美学在里面。

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And you can imagine this gets complex and there's lots of interesting things to do to look to the real form, but those are the things that you should see.

可以想象下这样下去问题会变的复杂起来,而且当面对真实情况的时候,会有很多有趣的事情发生，但是这些东西你都应该明白的。

麻省理工公开课 - 计算机科学及编程导论课程节选

Lipids are really complex molecules on their own right, but because of their particular kind of complexity they allow certain biological structures to form.

脂类本身是非常复杂的分子,但正是它们独特的复杂性,使它们能够形成某些生物结构

耶鲁公开课 - 生物医学工程探索课程节选