All of the strikes have occurred in areas where Pakistan's military exerts little,if any control.

VOA: standard.2009.03.19

It occurred to me it'd be a great magic trick if I then appeared in back.

如果我突然在后排出现,那就是非常精彩的魔术了

耶鲁公开课 - 心理学导论课程节选

If smallpox occurred in your community, about 30 percent of the people that acquire the disease would die from it; the other 70 percent could be disabled or permanently disfigured as a result of the disease.

如果你周围有人得了天花的话,那么百分之三十的天花病人,会因此死亡,剩下的百分之七十会成为残疾或永久毁容,这都是天花造成的

耶鲁公开课 - 生物医学工程探索课程节选

"The last major event on that fault occurred 250 years ago, so if the fault snaps, it's going to snap by 1.7 meters, and that's about a magnitude 7 earthquake."

VOA: standard.2010.01.13