But you can imagine the inability to do that in a big population study with thousands and thousands of subjects, so we have to rely on data like this.

但你们可以想象在一个大样本研究中,不可能对数以千计的研究对象做这种培训,所以我们需要依靠像这样的数据

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

with a thousand New Yorkers walking past you,

有数以千计的纽约人从你旁边走过，

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And you know, even if people are doing these things anonymously, or they're part of a big national sample where they're one of thousands and thousands of subjects, people don't necessarily like to say that they're doing something that they don't think they should be doing.

你知道,即使人们参加的是匿名调查,或他们是全国性样本中的一员,他们是那数以千计万计总体中的一员,人们似乎也没有必要说出,他们做的一些,自认为不应该做的事情

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选