Smell registers in the primal brain, known as the limbic system.

嗅觉在最初的大脑， 也就是通常所说的边缘系统登记。

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The idea that even one primal part of the brain is involved in processing love would be enough to make the feeling powerful.

竟然连大脑部最原始的一个部分都和爱打了交道就足以让这种感情非常强烈。

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