'With the population still growing by about 80 million each year, it's hard not to be alarmed,' said Robert Kunzig, author of an article entitled '7 Billion' in National Geographic magazine.
罗伯特•昆齐希写了一篇题为《70亿》的文章，发表在《国家地理》杂志上。他说，“全球每年增加约8000万人口，很难不让人感到恐慌。”
'With the population still growing by about 80 million each year, it's hard not to be alarmed,' said Robert Kunzig, author of an article entitled '7 Billion' in National Geographic magazine.
罗伯特•昆齐希写了一篇题为《70亿》的文章，发表在《国家地理》杂志上。他说，“全球每年增加约8000万人口，很难不让人感到恐慌。”
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