Sometimes it seems as though the different branches of the Obama administration are not on speaking terms. On Monday, the Environmental Protection Agency launched a plan to make US states limit their carbon dioxide emissions. On Tuesday, the commerce department said it would raise the cost for them to comply.
奥巴马政府的各个职能部门之间，有时看上去彼此互不通气。周一，美国国家环境保护局(Environmental Protection Agency)才公布了一项计划，要求各州控制二氧化碳排放量。周二，美国商务部表示，它将增加各州遵守这一计划的成本。
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