Now let me give you a successful example of the law of diffusion of innovation.

下面我给大家介绍一个 成功的例子。

So let me give you a famous example, a famous failure and a famous success of the law of diffusion of innovation.

我再举些着名的例子吧， 证实创新传播规律的一个失败的例子 和一个成功的例子。