It has little or nothing to do with the .(这段话是这篇文章的关键,我却看不懂了)It has little or nothing to do with the model that I want to focus on.To use a common quote by Donald Knuth,"Premature optimization is the root of all ev

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It has little or nothing to do with the .(这段话是这篇文章的关键,我却看不懂了)
It has little or nothing to do with the model that I want to focus on.To use a common quote by Donald Knuth,"Premature optimization is the root of all evil." It's better to avoid optimizations until you have metrics saying that you have to do them.

A has little or nothing to do with B
表示A与B几乎没有关系

B has little or (nothing) to do with A 的意思是“B几乎(完全)与A无关。”。这样明白了吧?