At eight meters long, this is a plesiosaur. 这只蛇颈龙身长八米

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  1. Safety in numbers.
    龟多更安全
  2. Turtles first evolved back in the Triassic.
    海龟最早是在三叠纪时期进化而来
  3. But by the time they'd conquered the seas, the ocean was home to deadly predators.
    但当它们征服大海时 海洋已经成为致命捕食者的家园
  4. At eight meters long, this is a plesiosaur.
    这只蛇颈龙身长八米
  5. It, too, is a reptile,
    它也是爬行动物
  6. but one that spends its entire life at sea.
    但一辈子在海中生活
  7. As the plesiosaur can only eat so much,
    因为蛇颈龙食量有限

来自《我们星球上的生命 第一季 第四集 Life on Our Planet S01E04 冷血动物》第 208 行

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