议院已经通过了一个相当强力的限制排放的气候议案——Waxman-Markey法案——如果它成为一条法律，将会最终使得温室气体排放量锐减。

The House has already passed a fairly strong cap-and-trade climate bill, the Waxman-Markey act, which if it becomes law would eventually lead to sharp reductions in greenhouse gas emissions.

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动物法最强力的功能是其指定（濒临灭绝动物）“生存栖地” 的权利，指定区内严格地限制人们开发、耕种和采矿。

The act's most powerful tool is the power to designate “critical habitats”, in which development, farming and mining are greatly restricted.

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不过Matheson先生指出，美国的医疗保健系统分散零碎且规模巨大——甚至比沃尔玛的规模要大很多，这可能会限制公司强力推动变革的能力。

However, Mr Matheson points out that America's health-care system is fragmented and huge-far bigger even than wal-mart-which could limit the firm's ability to force change.

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