来自《耶鲁大学开放课程：环境政治与法律 第2集 第2集》

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  hazardous wastes or hazardous sites or pesticide problem.
  危险废物 危险区域或杀虫剂问题
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  It's fractured by level of government.
  同时管理的政府级别也不同
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  There's very little surveillance.
  监管力度很小
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  It tends to evolve at a snail's pace.
  它发展极慢
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  And a little anecdote there, in a variety of decisions to
  还有一个小轶事 要经过大量决定来
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  regulate or license an individual chemical or a new
  规范或许可一种化学物质或一个新产品
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  product, it often will take EPA up to a
  环保署常常要花上
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  decade or fifteen years to go through a review to determine
  十年或十五年的审查来确定
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  whether or not that chemical is safe,
  这种化学物质是否安全
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  whether or not it poses excessive risk,
  是否造成额外风险
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  or what the economic benefit is.
  或有何经济效益
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  If it's being reviewed under a balancing and cost standard,
  如果用平衡成本标准来审查它