站在理性的角度，我们也许知道我们并不需要某个特殊的人，但是世代进化的冲动难以争辩。

We might rationally know that we don't need that special person, but it's hard to argue with generations of evolved impulses that whisper otherwise.

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进化是在一个生物种群内可遗传的特征随着世代延续而发生变化。

Evolution is the change in the inherited traits of a population of organisms through successive generations.

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