对那些可能杀得了你的事物心生恐惧是毫无意义的。

There is no point in fearing the things that cannot possibly kill you

youdao

有时候当我们走出舒服的区域，我们会对想象中可能发生的事情心生恐惧。

Sometimes we are fearful of what we imagine might happen if we step outside of our comfort zone.

youdao

哈利看见远处有一个很大的、蝙蝠般的身影，正穿过黑暗朝围墙飞去，他不由得心生恐惧。

With a tingle of horror, Harry saw in the distance a huge, batlike shape flying through the darkness toward the perimeter wall.

youdao

But the presence of the dog there is a conditioned stimulus and so you grew to be afraid of dogs.

而这时狗的存在就变成了条件刺激,所以你开始对狗心生恐惧。

耶鲁公开课 - 心理学导论课程节选