他听到她咯咯地笑，穿上她的睡袍，踮着脚走到厨房，弄响面包机、咖啡机还有窗帘。

He listens as she giggles, slips on her robe, tiptoes into the kitchen, and rattles the toaster, the coffee maker, and the curtains.

youdao

笑是一个严肃的科学课题，是一个研究者们仍然正在试图弄明白的问题。

Laughter is a serious scientific subject, one that researchers are still trying to figure out.

youdao

不弄，也很难(咯咯的笑，然后叹了口气)。

It's hard not to try to (chuckle and sigh).

youdao

I got interested in this--well, I got interested in this as a developmental psychologist watching my own children laugh and trying to figure out what it is that made them laugh.

我对笑感兴趣…,身为一个长成心理学家,当我看到我孩子笑时，我就对这个议题感兴趣了,我想弄明白是什么令他们笑的。

耶鲁公开课 - 心理学导论课程节选