It allows for this map between a symbol, say a spoken word, and any sort of thought we want to use.

语言允许在符号,比如说出的一个词,与我们想要使用的任何想法之间,存在着这种映射关系

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I think one of the classic ones for strings is called the Rabin-Karp algorithm. And it's simply the same idea that you have a mapping from your import into a set of integers.

我认为字符串哈希,最经典的是Rabin-Karp算法,它只是简单的相同概念,你有一个映射关系将你的输入映射成一组数字。

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