Do I go out to Harvard yard and take a random sample ? of sophomores to study meditation?

是不是可以在哈佛大二学生里随机抽样,来研究冥想？

哈佛公开课 - 幸福课课程节选

And I say if you took a random sample of the Americans: "When you woke up in the middle of the night" and said: "What does the America stand for?"

我觉得如果给美国人做个抽样调查：,半夜醒来的时候“,被问到，美国人主张什么“

普林斯顿公开课 - 国际座谈会课程节选