"A tank is enough to get you around the region for the day, but you have to plan ahead," Martin Risberg, a county engineer, said as he filled a biogas Volvo.
“一个油箱就足够让你在这一地区转上一天，但你必须提前计划。”该县工程师马丁·里斯伯格一边给一辆沼气沃尔沃加满油，一边说。
The only problem is that such a plan would require the construction of an entirely new external fuel tank.
唯一的问题是这样的计划将需要一个全新的外部燃料箱的建造。
Stuart Butler of the Heritage Foundation, a conservative think-tank, sums up Mr Obama's plan this way: “It's a prelude to going for broke.
保守派智库---美国传统基金会的斯图亚特•巴特勒，一位保守派智囊，这样总结了奥巴马的计划：“这是大爆发的前奏。”
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