grind their way down the mountains, 碾磨出一座座尖峭的山峰

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  1. the glaciers.
    冰川
  2. Immense rivers of moving ice,
    一望无际的流动冰河
  3. laden with rock,
    满载着岩石
  4. grind their way down the mountains,
    碾磨出一座座尖峭的山峰
  5. gouging out deep valleys.
    刨削出一个个深邃的山谷
  6. They're the most powerful erosive force on our planet.
    它是地球上最大的侵蚀作用
  7. A moulin - a shaft in the ice opened by melt water as it plunges into the depths of the glacier.
    冰川瓯穴——由冰融水凿成的 直达冰川深处的圆筒状竖井

来自《行星地球 第一季 第二集 Planet Earth S01E02 山地》第 156 行

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