At times of crisis when everything is collapsed you know,there is no, people don't know where to go,"

VOA: standard.2010.01.20

Number of policies doesn't affect the means but it affects that standard deviation, so it becomes very collapsed and this is the basic core idea of insurance.

保单的数量并不影响其均值,但是会影响其标准差,所以这条曲线非常陡峭,而这就是保险的核心原理

耶鲁公开课 - 金融市场课程节选

The fact that these figures were collected even before the job market collapsed isn't encouraging to former members of the military now looking for jobs.

NPR: Returning Home Can Feel Like Demotion For Vets

It wasn't clear how the building collapsed.

WSJ: India Police Arrests Nine in Building Collapse

He didn't know the twin towers had collapsed behind him until he reached the hospital, about an hour after the first plane hit.

CNN: WTC burn victim recalls September 11