Flights between the US and China will more than double from 10 to 23 a day by 2012.

到2012年，美中两国间每日航班班次将增加1倍以上，从每日10个班次升至23个班次。

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The world’s population of people aged over 60 will double from 11% in 2006 to 22% by 2050.

从2006年到2050年，全世界60岁以上老龄人口将翻一番，从占总人口的11%增至22%。

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The urban population will double from the 2001 census figure of 290m to perhaps 590m by 2030.

2001年人口普查数为两亿九百万，而到2030年，该数据可增至五亿九百万。

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That is almost double the number from two thousand seven.

VOA: special.2009.05.27

The moderate right wing votes she's going to split with Claire Elise, and jean's going to have all the left wing votes, extreme and moderate, and so from Stacy's point of view this is a double bad.

温和的右派选票会被她,和克莱尔·伊莉斯分享,吉恩将会获得所有的左派选票,极端的和温和的,因此从斯泰西的角度看这是加倍的差

耶鲁公开课 - 博弈论课程节选

It operates in a similar fashion to DNA polymerase in that it denatures locally or opens up the double stranded DNA, but it's different in that it creates a new polymer from the DNA template in the language of RNA, using RNA nucleotides and not DNA nucleotides.

它的作用机制类似于DNA聚合酶,在局部使DNA双链变性,解旋,但不同的是,它合成了一个基于DNA模板的,使用RNA编码语言的新聚合物,即使用核糖核苷而非脱氧核糖核苷

耶鲁公开课 - 生物医学工程探索课程节选

If we assume natural gas prices track oil's, gas will double from today's already high level.

FORBES: Brownout

My firm sold its AOL after the first double from the stock's low last spring.

FORBES: Santayana got it wrong

Some 210, 000 people are on the waiting list for public housing, about double from 2006.

NPR: Hong Kong Poor Living In Cages And Cubicles