First,the Labor Department reported a spike in the number of Americans filing for jobless benefits.

VOA: standard.2010.05.20

With the recent spike in food prices around the world that you've all heard of because of rising energy costs.

大家都听说了,由于能源价格上升,导致了全球食品价格的飞涨

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If we did a--if we go another two decimals-- if we did a million policies, then we would--this would almost just be a spike here at that point, so that's the concept of insurance.

如果我们在一万后面加两个零,如果我们签了一百万份保单,那么这条曲线基本就是尖形了,这些都是保险的相关概念

耶鲁公开课 - 金融市场课程节选

Although the U.S.jobless rate continues to spike higher, the actual number of Americans who lost jobs during the month was the smallest since last September, the fourth consecutive month in which the pace of job losses slowed.

VOA: standard.2009.06.07

Yeah, you are going to have a spike in your level of wellbeing-- I'm sure you had a spike in your level of wellbeing when you got this acceptance letter, but very quickly we go back to our base level.

没错，你们会感觉极至的幸福-,我肯定拿到录取信时,你们的幸福感也达到峰值，但很快又恢复到基础水平。

哈佛公开课 - 幸福课课程节选