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.
然而，正是这些非名人影响力者，根据两步传播理论，应该通过直接影响他们的朋友和同事来推动社会流行现象。
Consumers passionate about a product may create "earned" media by willingly promoting it to friends, and a company may leverage "owned" media by sending e-mail alerts about products and sales to customers registered with its Web site.
对产品充满热情的消费者可能会通过主动向朋友推荐产品来创造'赢得的'媒体，而企业则可以通过向在其网站上注册的客户发送电子邮件，告知产品和促销信息，来利用'自有'媒体。
eager to help their friends promote quality products.
急于帮助朋友推广优质产品。
An emerging body of research shows that positive health habits - as well as negative ones - spread through networks of friends via social communication.
一项新兴的研究表明，积极的健康习惯——以及消极的习惯——都会通过朋友之间的社交沟通在社交网络中传播。
And that's the problem with a social cure engineered from the outside: in the real world, as in school, we insist on choosing our own friends.
而这就是从外部设计的社会疗法的问题：在现实世界中，就像在学校一样，我们坚持要自己选择朋友。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。