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The Supreme Court ruled today, in what amounts to a rebuke of the Bush administration, that the Environmental Protection Agency has the authority to regulate carbon dioxide from automobile emissions, and that it has shirked its duty in not doing so.
求达人翻译全句外加解释一下and that it has shirked its duty in not doing so.里面的it 和its分别代表什么?
感激不尽哈~~~