来自《耶鲁大学开放课程：环境政治与法律 第1集 第1集》

• 
  
  to balance risks or costs against benefits,
  平衡风险和利益呢
• 
  
  and when should a fixed standard
  可接受风险的固定标准何时
• 
  
  of allowable risk drive a decision?
  能期决策作用呢
• 
  
  Those are very difficult questions.
  这些问题都很难
• 
  
  So that said, I'd like to just briefly run through
  我会简略放映
• 
  
  a set of slides here that I think are reflective
  一组幻灯片
• 
  
  of the material that we'll be reviewing.
  回顾一下值得沉思的内容
• 
  
  And I wanted to start with this set of images from Thomas Cole,
  首先看下这组来自托马斯·柯尔的幻灯片
• 
  
  a well-known landscape artist from the nineteenth century,
  他是19世纪著名的山水画家
• 
  
  one of the Hudson River School painters.
  来自哈得逊画派
• 
  
  Just to give you a sense of where I came from,
  为了让你们感受下我的故乡
• 
  
  my background as an undergraduate was in history.
  我早已不是当年的那个本科生