来自《哈佛大学公共课-公正：该如何做是好 第11集》

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  or enlists in the military,
  或是报名入伍是一回事
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  they are making a voluntary choice.
  他们都在做自愿选择
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  But Rawls says there is, I believe,
  但罗尔斯说 我相信
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  no political obligations, strictly speaking,
  严格来说 通常对于公民来说
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  for a citizens generally.
  不存在政治义务
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  Because it's not clear what is the requisite binding action
  因为何为必须履行的义务 谁来履行
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  and who has performed it.
  都还无定论
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  So Rawls acknowledges that for ordinary citizens
  所以罗尔斯认为 对普通公民来说
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  there is no political obligation except in so far as
  政治义务是不存在的 除非某些公民
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  some particular citizen willingly, through an act of consent,
  自觉 自愿地承担或选择
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  undertakes or chooses such an obligation.
  这种义务
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  That's in line with Julia's point.
  这与茱莉亚的观点不谋而合