The president said jobs requiring at least an associate degree are expected to grow twice as fast in the coming years as jobs requiring no college experience.

VOA: special.2009.07.16

Alright, I have the problem so clearly this algorithm whatever it's gonna be is gonna be at least twice as fast because I'm doing half as much work.

现在，这个问题已变得清晰,不管怎么样，排序算法的效率,至少是之前的两倍,因为我只需要做一半的工作。

哈佛公开课 - 计算机科学课程节选

Okay. So what happened next was he then started to run that faster, twice as fast as it had been before, changing rate of harmonic pattern. Okay?

好的，比以前的快两倍，比以前的快两倍，改变了泛音的方式，改变了泛音的方式，对吧？

耶鲁公开课 - 聆听音乐课程节选

Played at normal speed, the half speed recordings sound twice as fast.

VOA: special.2009.09.27

Others are a bit uncomfortable with that, They're going twice as fast.

其他人可能对这个结论不太满意,他们会觉得是这个速度的两倍

耶鲁公开课 - 聆听音乐课程节选