Global research company REN 21 - a network of governments, non-government organizations, and industry associations - reports China's total wind power doubled for the fifth year in a row in 2008, ending that year producing 12 gigawatts and passing its 2010 development target of 10 gigawatts two years early.

VOA: standard.2010.08.03

So, don't start here. And, it happens infrequently, but I've got to tell you, a few years back on the final exam, a couple of people were involved in passing information back and forth.

不要开始这样做，这也不常发生，我要告诉你们,几年前的期末考试里，有几个人，他们,给前后传递答案。

麻省理工公开课 - 固态化学导论课程节选