据去年又突破科技学院的研究发现，一个公车快运系统在美国中等大小城市运行20年能减少多达65.4万吨的燃料。
A study last year by the Breakthrough Technologies Institute found that a BRT system in a medium-size U. s. city could cut emissions by as much as 654,000 tons over 20 years.
据去年又突破科技学院的研究发现，一个公车快运系统在美国中等大小城市运行20年能减少多达65.4万吨的燃料。
A study last year by the Breakthrough Technologies Institute found that a BRT system in a medium-size U. s. city could cut emissions by as much as 654,000 tons over 20 years.
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