Colleges are non-profit organizations. It’s impossible for schools to afford high fees for celebrity lecturers.
大学是非盈利机构，负担不起名人演讲的高额费用。
2
However, contrary to expectations, the number of women saying they would go out and purchase these shoes did not differ significantly between celebrity and non-celebrity photographs.
然而，和预期相反，这些女士说她们外出买鞋并非主要区分是否是名人做的广告。
3
Yet it is precisely these non-celebrity influentials who, according to the two-step-flow theory, are supposed to drive social epidemics, by influencing their friends and colleagues directly.