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7集 第7集》

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  about what parts of the world
  饥饿问题最严重的国家
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  the countries are in that have the greatest problems with hunger.
  分布在地球上的哪些区域
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  The greatest number in sub-Saharan Africa
  刚才的幻灯片显示
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  as the previous slide suggested.
  撒哈拉以南的非洲国家饥饿人数最多
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  Malnutrition, let's talk about that.
  接下来 聊聊营养不良
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  There are several ways malnutrition can affect the body,
  营养不良会通过许多方式影响身体
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  and one way is through deficiencies in macronutrients.
  其中一种是大量营养元素的缺乏
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  So that means you just don't get enough of protein,
  也就是说你们没有吸收足够的蛋白质
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  carbohydrate, or fat.
  碳水化合物 或是脂肪
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  Remember those are the three macronutrients.
  记住那些是三大营养元素
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  Collectively they provide calories to survive,
  它们共同提供生存所需的卡路里
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  so your engine just doesn't have enough energy to keep going.
  所以你的身体没有足够的能量来维持