If you have to put the guy's hand on it, you're less likely to kill him.

如果你要把被电击者的手放在上面，你电死他的可能性会降低。

耶鲁公开课 - 心理学导论课程节选

Yen Cu is back there, Yen raise your hand higher so everyone can see.

楚叶坐在后面,叶把你的手举高一点,让所有的人都能看到你

耶鲁公开课 - 生物医学工程探索课程节选