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20集 第20集》

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  so we really coded carefully to see how the policy was worded,
  所以我们确实仔细地编辑了政策的措辞
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  and whether it was kind of a suggestion
  看看该政策用的是建议式
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  or whether it was really requiring change.
  还是真的要求改变
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  What we found was that the strength of the policy,
  我们发现政策的力度
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  so this was how many of their statements were required
  也就是政策的措辞中有多少是要求型的
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  did significantly predict the reduction in unhealthy snack sales.
  确实能显著预测不健康零食的销量减少量
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  The next thing we did is we put together--
  我们做的另一件事就是我们将
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  and this is Guilford's--is
  这是吉尔福特的
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  we put together a report card for every district in the state
  我们将每个州每个地区的的报告卡放一起
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  and this is sort of the summary of their scores
  这就是他们在我提到的那些领域
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  on each of those domains I mentioned.
  的分别得分
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  We divided it into two things--this is a little bit complicated--
  我们将其分开 这有些复杂