来自《耶鲁大学开放课程：有关食物的心理学、生物学和政治学 第19集 第19集》

• 
  
  in reducing the incidence of obesity,
  来降低肥胖的发生率
• 
  
  particularly among children.
  特别是在儿童肥胖
• 
  
  The next question is,
  下一个问题是
• 
  
  you need to know:
  你还需要知道
• 
  
  what the major barriers are to achieving your policy objective?
  对于你达到政策目标的主要障碍是什么
• 
  
  There are going to be barriers that deal with legality,
  有可能正当性会是一个障碍
• 
  
  there are going to be barriers that deal with costs,
  也有可能花费是一个障碍
• 
  
  there are going to be barriers that deal with personal freedoms,
  有可能个人自由是一个障碍
• 
  
  there are going to barriers about bad science.
  也有可能伪科学是一个障碍
• 
  
  I said to you that one of the things public health people try to do
  我说过 公共卫生人想要做的一件事
• 
  
  was to get legislatures at the state level
  就是试着去找州一级的立法机关
• 
  
  to pass laws requiring motorcyclists to wear helmets.
  通过一门法律要求骑摩托车者戴头盔