该零售模式是为对越来越多网络相关工具有上升性使用需求的人设计的，目的是改变他们的搜索、购物和购买方式。

It is about devising retail models that work for people who are making increasing use of a growing array of internet-connected tools to change how they search, shop, and buy.

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在此例中，某个搜索“大理石”的人可能不了解这些区别，因此对搜索结果感到混淆。

In this case, someone searching for "marble" may not understand the differences and therefore be confused by the search result.

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站点地图便于对站点进行深度搜索。

Site maps facilitate deep searches of the site.

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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

In the linear case, meaning in the unsorted case what's the complexity of this? k times n, right? Order n to do the search, and I've got to do it k times, so this would be k times n.

复杂度是多少？k的n次方，对吧？,在序列n中做搜索，要做k次，所以是k的n次方次,如果先排序后搜索。

麻省理工公开课 - 计算机科学及编程导论课程节选

I could still do the linear case, which is order n or I could say, look, take the list, let's sort it and then search it. But in that case we said well to sort it was going to take n log n time, assuming I can do that.

我仍然可以做O的线性搜索,或者也可以以这个列表为例，我们先将其进行排序,然后再进行查找，但是在这种情况下,要花费n，log，n的时间去对其进行排序。

麻省理工公开课 - 计算机科学及编程导论课程节选