在文学中，人们谈的那些让人害怕的刺激物——蛇、蜘蛛、那些我们天生就怕的东西。
In the literature, people talk about prepared fear stimuli -snakes, spiders, things that we're innately prepared to be afraid of.
就是没有重新安家的因素，有些人天生就是害怕社交的人，结果，不管住在哪里，都会发现拥有许多朋友是很艰难的事情。
Even without the relocation factor, some people are just not natural social butterflies and as a result, find it tough to have many friends no matter where they live.
“我们不用学习，而自然地会害怕电击或者巨大的噪声甚至恐怖的脸，这些偏好似乎是天生的，”他告诉LiveScience。
"We don't learn to fear electric shocks or loud noises or even threatening faces, but rather, these preferences seem innate," he told LiveScience.
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