From shopping malls in the United States, stocked with Chinese-made goods, to busy Chinese factories where the goods are made, it's evident the two countries rely heavily on each other.

VOA: standard.2009.11.10

He decided to send himself and his students to different places including shopping malls and observe when people laughed and write down what made them laugh.

除了他自己，他还派他的学生,去各种各样的地方，包括购物商场,观察人们在什么时候会笑,并写下让他们笑的原因。

耶鲁公开课 - 心理学导论课程节选