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14集 第14集》

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  because we may very well bring down energy density
  因为即使能量密度下降了很多
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  and then have these huge packs people simply consume more,
  如果人们买大包量的来吃
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  and you'll be back to the same--the calorie position
  摄入的热量是一样的
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  even though they may be healthier calories,
  即使是健康的热量
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  the total volume may be wrong.
  总量仍可能存在问题
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  We have quite a concerted effort to include portion size
  我们将联合其它一些美国公司
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  as an explicit focus of our work, both through a joint initiative
  共同致力于将明确份量
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  with a range of other companies in the U.S.,
  作为我们工作的重点
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  which hopefully we'll make public before--probably somewhere next year.
  希望能在明年公之于众
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  The good news about it, and
  好消息是
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  let me just give you the kind of thinking that we have.
  我先说说我们已完成的工作
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  First of all, I think that what portion size does--
  首先 我认为份量大小--