也就是说生产理论建立在这样的前提下，即我们可以通过人们的选择来间接衡量人们的喜好。
That is, consumer theory isbased on the premise that we can infer what people like from the choices they make.
站直了，别趴下：即使你没有权利，你还是应该在这样的前提下工作，那就是客户需要你的程度和你需要客户的程度一样深。
Stand tall: Even if you have no right, work from the premise the customer needs you as much as you need the customer.
记住，在我们的研究中，所有的评论打分五分都给了四分，得分并不低，在这样的前提下，评论者说的话才更具有说服力。
Remember that in our study, both write-ups gave four out of five stars, and what the reviewer had to say was compelling.
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