Take mass transit. The Obama stimulus would designate a chunk of money for the upgrading or expansion of mass transit systems, in part through the purchase of new subway and light rail cars.

以公共交通为例，奥巴马的刺激计划将提供公共交通系统升级和扩大的资金，用于购买新地铁车厢和轻轨车厢。

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The plan is to shift to efficient, low carbon bus rapid transit systems and light rail, and to retire old buses and replace them with lower carbon alternatives, such as hybrid vehicles.

城市交通规划的目标是向节能、低碳型快速公交系统转变，淘汰老旧公交车，用混合动力车等低碳车辆对其进行更换。

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Concern over air pollution has revived interest in light-rail transit and has led to regional mass transit systems.

对空气污染的忧虑使人们对轻轨运输重新产生兴趣，促成了地方性运输系统。

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Eighty billion dollars of that total was to be pumped into the U.S.economy to promote development of renewable energy, urban mass transit, high-speed rail systems and clean energy jobs.

VOA: standard.2010.02.25

That change in perception is providing more momentum for some cities that were already moving away from six-lane highways and suburbs dozens of miles apart, to a series of urban centers connected by light rail and other mass transit systems.

CNN: U.S. cities scrambling to meet rising mass transit demands

Rogoff has had an instrumental role in advising policy makers on the operating and capital needs of Amtrak, including the initiation and financing of high speed Acela service, as well as the financing of dozens of new light rail and bus rapid transit systems across the United States.

WHITEHOUSE: THE WHITE HOUSE

The government plans to tackle congestion in cities by a big expansion in light rail, trams and other rapid-transit systems.

ECONOMIST: British election briefing: Transport