brings huge quantities of food into these high rivers that normally struggle to support much life. 于是这些平常只能勉强维持众多动物生计的 高山河流终于有了提供饕餮大餐的机会

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support normally quantities rivers struggle huge life much these brings into high food of that to
  1. But catching salmon in deep water is not that easy
    但要想在深水中捕获鲑鱼可不太容易
  2. and the cubs have lots to learn.
    熊崽们还要很多东西要学
  3. The annual arrival of spawning salmon
    鲑鱼每年都会到河里产卵
  4. brings huge quantities of food into these high rivers that normally struggle to support much life.
    于是这些平常只能勉强维持众多动物生计的 高山河流终于有了提供饕餮大餐的机会
  5. Although relatively lifeless, the power of the upland rivers to shape the landscape
    尽管高山河流的生物量相对较少 它们却有能力改变地形
  6. is greater than any other stage in a river's life.
    在河流扮演的角色中 这才是最主要的
  7. Driven by gravity, they're the most erosive forces on the planet.
    它们借助地心引力 成为地球上最大的侵蚀力量

来自《行星地球 第一季 第三集 Planet Earth S01E03 淡水》第 69 行

Walden21
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