Volcanic activity broke the large island into pieces that came to the surface of the sea over time.

VOA: special.2009.12.16

I don't believe we'll-- I'll--come close to scratching the surface of what I would enjoy doing, by the time I've died.

我不能相信-,我能推测死时,自己会对什么感兴趣。

耶鲁公开课 - 死亡课程节选

At the same time, hot liquid rock from deep in the Earth pushed to the surface.

VOA: special.2009.01.07

Whether this will give the Surface time to play catch-up - or whether some iPad users will stop using Office - remains to be seen.

BBC: Interview: The man behind the PowerPoint presentations

Little is known about their pricing, but allegations surface from time to time about oligopolistic practices.

ECONOMIST: Ports in a storm

Together, these processes incised the glacier surface over time.

UNESCO: Dublin Core