In this fantasy about the indigenous girls,what you see is

在这个关于本地女孩的故事中你看到的是
a commitment to language and the activity of selling,

语言的使用还有销售这一行为
buying and selling, entirely entwined with one another.

买卖两者完全缠绕在一起
So, the fantasy here is that it's selling and buying that produces in them

奇妙的是作品中的买卖行为产生了
a language that looks very much like the language

一种语言一种非常像
that's frequently attributed to Dean: frantic and silly,

狄安经常使用的语言慌乱而且愚蠢
almost silly. Remember,

几近愚蠢记得吗
as the novel goes on and Dean gets more and more hyper,

随着小说的推进狄安变得越来越兴奋
sort of "wigged out," his language becomes more and more frantic,

几乎近于疯狂他的语言变得越来越慌乱
and more and more actually silly.

越来越愚蠢
So this is here attributed to them.

这些话都是他们所说的
There are other fantasies at work here, obviously.

很明显这里还有别的想象