Researchers at the University of Surrey in England took to the streets of Guildford, "a typical English town," to look at the effects of traffic on concentrations of polluting particles.

英国萨里大学的研究人员们来到“典型的英式城镇”吉尔福德的街头，观察交通堵塞对污染粒子浓度的影响。

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Researchers % at the University of Surrey in England took to the streets of Guildford, "a typical English town," to look at the effects of traffic on concentrations of polluting particles.

英国萨里大学的研究人员们来到“典型的英式城镇”吉尔福德的街头，观察交通堵塞对污染粒子浓度的影响。

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In England traffic must keep to the left.

在英国，车辆必须靠左行驶。

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Reporting back in 1990, the authority said air traffic in the south east of England would reach saturation point by 2005 and suggested extra runways were needed at one of London's airports, with the best option, in terms of costs to passengers, a third runway at Heathrow.

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