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。
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.
他们援引了今年早些时候公布的一项研究，该研究共有249对父母和他们的孩子参与，其中想要制定父母共享规则的孩子是父母的两倍。
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。
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
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