You try to design actually I'm going to come back to that in a second. It's like you're trying to use a hash function that spread things out pretty evenly. But the places you store into in those lists may have to themselves have a small list in there, and when you go to check something, you may have to do a linear search through the elements in that list.

你尝试着去设计,实际上过会儿我会回头讲解这个问题,类似于你需要用一个哈希函数,非常平均的将物体分发出去,但是在列表中你数据,映射到的地方可能会有自己的一小段列表，当你回头查找数据的时候,你可能需要在那一小段列表中做线性查找。

麻省理工公开课 - 计算机科学及编程导论课程节选

The real sort of typical home of the kinds of things were talking about is Mesopotamia, modern Iraq, the Tigress, Euphrates Valley, which spread out beyond Iraq and went up into Syria and neighboring places.

我们所讨论的这些旧文明中的典型大约,起源于美索不达米亚,即现在的伊拉克,在底格里斯河,幼发拉底河流域,其范围超过了伊拉克,还包括叙利亚以及邻近地区

耶鲁公开课 - 古希腊历史简介课程节选