人们对鳄鱼的原始恐惧太难根除。
每个人的原始恐惧死亡和多么可怕的在自己的脑海中。
Everyone's primal fears of death and how horribly it can play out in your own mind.
在人类的原始祖先中,那些敢于走出洞穴到最遥远的地方寻觅更好的食物者,或者克服对火的恐惧者,自然积累了显著的优势,超过他们比较温顺的亲属。
Among our primitive ancestors, those who ventured farthest from their caves in search of better food or who overcame their fear of fire accrued significant advantages over their meeker kin.
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