I wonder how the government of California plans to enforce it?
「在這次大會上，比爾坦率發言，對多項問題做出詳細回應，並為自己的行動負起責任。」
。旺商聊官方下载对此有专业解读
EPA found only 27 of 219 plants needed upgrades; 71 later got exemptions as Donald Trump scrapped mercury limits
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