If there is a little bit of laughter that you cannot quite cut out It's like the Today Show and the cameraman cannot help at laugh and then the boom drops in the frame

如果中间出现了一小段,去不掉的笑声,就像是在“今日秀“里,摄影师忍不住发出笑声了一样,随后长杆话筒掉在了摄影机架子上

普林斯顿公开课 - 领导能力简介课程节选

Children are particularly influenced by the contagiousness of laughter, but just in general, if you hear somebody laughing, like the kids you saw before, it's the sort of thing that could easily make you laugh.

孩子特别容易,受笑声的感染，但普遍来说，如果你听到有人笑，像你们刚才看到的小孩子，这样的事物很容易引你大笑。

耶鲁公开课 - 心理学导论课程节选

Laughter is not like hunger.

笑不像饥饿。

耶鲁公开课 - 心理学导论课程节选

When you're in a group doing something terribly aggressive and you are not--you don't feel like you're at risk you might laugh and laughter is a signal to other members of your group as a signal of solidarity and what you're doing together.

当你在群体在做具有强烈攻击性的行为时,你不会觉得自己有危险,你会笑,你笑是向其他群体成员传达一个信号,你们团结一致，共同进退。

耶鲁公开课 - 心理学导论课程节选