Bush父亲在任时正式批准了美国首个全国性的配额交易计划，该计划旨在控制引发酸雨的气体排放。
Mr. Bush's father, when he was president, signed off on America's first nationwide cap-and-trade scheme to control emissions of the gases that cause acid rain.
Bush父亲在任时正式批准了美国首个全国性的配额交易计划，该计划旨在控制引发酸雨的气体排放。
Mr. Bush's father, when he was president, signed off on America's first nationwide cap-and-trade scheme to control emissions of the gases that cause acid rain.
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