translation.en: To do this, we've had to make recordings of people laughing, and we've had to do whatever it takes to make people laugh, and we got those same people to produce more posed, social laughter.
translation.zh: 为了做这个，我们必须录下人们的笑声， 首先我们得，想尽办法把人们逗笑， 然后我们再让同样的人， 去呈现装腔作势的、社交性质的笑。