The volcanic eruption was the second time in two years that Iceland has shaken its neighbors to the east.

VOA: special.2010.04.23

In my in my area of research, it's common for us to want to process about 100 images a second in order to get real time display. Each image has about a million elements in it. I 've got to process about a half a gig of data a second in order to get anything out of it.

在我们的研究领域内，我们经常要在一秒钟内处理大概,100张图片以获得实时显示,每个图片大概包括了100万像素,因此我必须在1秒内,处理半个G的数据,来获取我想要的。

麻省理工公开课 - 计算机科学及编程导论课程节选

A second government program a tax credit for first-time home buyers has helped the housing market.

VOA: special.2009.11.06

This is the second time that Beechcraft has gone down to Embraer and the second time that it has road blocked the process.

FORBES: Move up http://i.forbesimg.com t Move down

This would be the second time his smaller airline has merged with (taken over, some would say) a larger one, and the second time he has let go of the identity of the enterprise he built.

FORBES: Big Deal: Reflections on the American and US Airways Megamerger

Mr Obama has for the second time postponed a trip to Australia, Indonesia and Guam in order to deal with the crisis.

BBC: Barack Obama cautious on new move to halt Gulf oil leak