四倍

Even if dumping weedkiller on the crops of peasant farmers quadruples the local price of coca leaves, this tends to have little impact on the street price, which is set mainly by the risk of getting cocaine into Europe or the United States.

即使为农民的作物喷洒的除莠剂都比可卡叶的当地价格贵四倍，但这对街头价格没有什么影响，街头价格主要由把可卡因带到欧洲或者美国的风险决定的。

Even if dumping weedkiller on the crops of peasant farmers quadruples the local price of coca leaves, this tends to have little impact on the street price, which is set mainly by the risk of getting cocaine into Europe or the United States.

甚至如果不使用杂草剂而使得当地可卡叶的价格翻四倍，这对于最终可卡因的市价影响较小，因为这主要取决于将可卡因贩卖到欧洲或者美国的风险。

Even if dumping weedkiller on the crops of peasant farmers quadruples the local price of coca leaves, this tends to have little impact on the street price, which is set mainly by the risk of getting cocaine into Europe or the United States.

尽管对这些作物喷洒除虫剂而使得当地可卡树叶的价格翻了四倍，但是这对街头卖出价却影响甚微，卖出价主要是由将可卡因提供到欧洲和美国的风险风险所决定的

Even if dumping weedkiller on the crops of peasant farmers quadruples the local price of coca leaves, this tends to have little impact on the street price, which is set mainly by the risk of getting cocaine into Europe or the United States.

即使农民因喷洒农药而成四倍地提高了咖啡当地的价格，对市面上的价格也不会有什么影响，因为市场价主要取决于把可卡因送入欧美市场的风险程度。

His team was asked to design a Mach 2 2.5 aircraft, which was then, and probably still is, a nontrivial task-especially when the objective is to create a "cheap" lightweight aircraft. Consider that the force required to overcome drag quadruples when doubling the speed, and what impact that has on aircraft weight.

要知道当飞行速度由单音速变为双音速时，空气阻力会增加至原来的四倍，考虑到因此所需要的动力，及其对机身重量的影响，满足这样的需求，即使是在今天也绝非易事。

Even if dumping weedkiller on the crops of peasant farmers quadruples the local price of coca leaves, this tends to have little impact on the street price, which is set mainly by the risk of getting cocaine into Europe or the United States.

即使由于使用除草剂，古柯叶产地价格提高四倍，街头毒品价格也不会受到什么影响。毒品价格只是有将其贩卖到欧洲或美国的风险决定的。

The startling numbers conjure up images of mass migrations and the trebling or quadrupling in size of big cities such as Beijing,Shanghai and Guangzhou.

这令人震惊的数量让人联想到大量的移民和比北京，上海和广州大三到四倍的大城市。

China's exports have quintupled in the past decade and reached 35% of GDP last year.

过去十年中，中国出口额增加了四倍，去年占到GDP的35%。

Chinese share prices have more than quintupled in the past 28 months, and most Chinese companies are trading at huge premiums to more sophisticated counterparts in developed markets, leading many analysts to conclude that a bubble has formed.

在过去28个月里，中国股市涨逾四倍，多数中国公司的股价较发达市场中更为成熟的同类公司有巨大的溢价，因此许多分析师作出了这样的结论：出现了泡沫。

When toughened glass is broken,the debris is granular and safe.

抗弯强度和抗冲击强度是普通玻璃的四倍以上。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。