来自《耶鲁大学开放课程：心理学导论 第20集 第20集》

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  there's not a huge effect on how rich a country is
  一个国家的富裕程度
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  and--on how happy the people are.
  对其居民的幸福程度没有太大影响
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  Furthermore, there are great individual differences
  况且 对于基本需求得到满足的人来说
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  in happiness among people whose basic needs are met.
  个体之间的幸福感差别也很大
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  For the most part,
  大多数情况下
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  everybody in this room is fed and sheltered and safe.
  课堂上的每个人都有吃有住也很安全
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  Some of you are prosperous, some of you are knowledgeable,
  有些人很富有 有些人很有学识
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  a couple non-celibate,
  有些人有恋人
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  and-- but even among that group
  即便如此
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  you vary in your happiness,
  你们的幸福感也不同
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  and that's kind of a puzzle.
  这是个令人迷惑的问题
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  And to explain the puzzle
  要解释这个疑问