This prevents them from darting around re-reading words, something that average person does to the tune of 20 words per page.

这样可以防止你的眼睛四处乱看，重复阅读，一般人会以每页20词的频率重复阅读。

You mean the dialogue that went, " Please? " " No." " Please? " " No." " Please? " " No."

你是过程只有" 托？" 、" 不行" 这词来回重复的那次吗？

So, if we have a word like vaca, vaca, vaca, what does that sound like?

那么，如果我们有一像“vaca”这样的词，重复说“vaca, vaca, vaca”，这听起来像什么？

In that evolution, we can hear how English speakers converted two distinct words into a rhyming pair which repeated the same sounds.

在这种演变过程中，我们可以听到英语使用者如何将不同的词汇转化为一押韵的词对，重复相同的发音。

Note also the way in which he repeats wage war, and this repetition is completed with that contrasting final short sentence.

注意他重复使用“宣战” 这词的方式，这种重复在那对比鲜明的短句结尾处得到了强化。