New drivers have twice as many accidents as experienced drivers.

新驾驶员所出的事故是老驾驶员的两倍。

《牛津词典》

They cited a study presented earlier this year of 249 pairs of parents and their children in which twice as many children as parents wanted rules on what parents could share.

他们引用了今年早些时候的一项研究，这项研究面向249对父母及其孩子进行，其中希望对父母分享的内容进行规定的孩子数量是父母的两倍。

youdao

It is reported that many Chinese babies are taking too much fish oil, twice as much as they physically need.

据报道，许多中国宝宝摄入的鱼油过多，是他们身体所需的两倍。

youdao

There were twice as many students taking part as last year.

VOA: special.2009.09.04

There were almost twice as many mouths to feed - but no extra food to feed them.

VOA: standard.2010.03.30

The first trawl is disappointing. They have only a dozen lobsters for twice as many traps.

VOA: standard.2010.07.20

And remember that a good teacher costs as much as an average one, whereas halving class size would require that you build twice as many classrooms and hire twice as many teachers.

NEWYORKER: Most Likely to Succeed

If you have twice as many slices (or twice as many dollars), could you share half of them with the government and still have as much pizza (or wealth) as you had before?

FORBES: Do we have a shortage of money?

Blanketing the nation, the bank has more domestic outlets (5, 700) than its two largest competitors--five times as many as Citi and twice as many as JPMorgan Chase.

FORBES: Money For The Masses