So in fact, there are professional magicians who make it their business to debunk people who claim to genuinely be in contact with the dead and the like.

而事实上,有些专业的魔术师,主要揭露那些声称,能和死人沟通的人的秘密

耶鲁公开课 - 死亡课程节选

One of the beautiful things about antibodies is that one your immune system is able to make antibodies against all the thousands, ten thousand, hundred thousand different pathogens that you'll come into contact with in your lifetime.

抗体的一个绝妙之处就在于,你的免疫系统可以分泌抗体来对抗,成千上万的 甚至数以十万计不同病原体,这些病原体都是你一生中可能会遇到的

耶鲁公开课 - 生物医学工程探索课程节选