第三人称单数： quadruples
过去式： quadrupled
过去分词： quadrupled
现在分词： quadrupling

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Officials say they will quadruple the city 's industrial and agricultural output by the year 2000 .

官方预测其工农业产值将在2000前翻两番。

G.m.s sales in china in the first half of 2010 were quadruple those of the ford motor company .

2010年上半年通用在中国的销售额是福特公司的四倍。

Mr zheng plans to quadruple the number of 7 days inns in china this year to 400 , from slightly more than 100 last year .

郑南雁计划今年把中国国内7天连锁酒店的分店数量翻两番，从去年的略多于100家扩张至400家。

So it is that russia is considering plans to quadruple excise duties on beer by 2012 .

俄罗斯正计划到2012年，啤酒消费税将会翻两番。

The group also estimates that revenue generated by those industries will more than quadruple to $ 4.5 trillion in that time .

该团体还估计，届时绿色产业所创造的收入将翻两番，达到4.5万亿美元。