Scientists say the Arctic is warming twice as fast as the rest of the planet.

科学家称北极变暖的速度是地球其他地区的两倍。

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Between 1980 and 2008, staff and teachers at U.S. public schools grew roughly twice as fast as students.

从1980年到2008年，美国公立学校的教职工人数增长速度大约是学生人数增长速度的两倍

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During the decade before the economic crisis, spending on legal services in America grew twice as fast as inflation.

在经济危机前的十年里，美国法律服务支出的增长速度是通货膨胀的两倍。

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With these genes, it can grow twice as fast as a wild Atlantic salmon.

VOA: special.2010.10.05

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

Computation gets twice as fast every 18 months, and at the same price point.

FORBES: Cheap Revolution, Part Six

In other countries, we see that yields would have been rising twice as fast.

BBC: Climate shifts 'hit global wheat yields'

Meitec, he believes, will expand nearly twice as fast, thanks to a highly skilled work force.

FORBES: Greasing the wheels