On reaching mountains, the moisture is forced upwards 途经山脉的时候 水气被迫抬升

8. Here, strange towers of sandstone have been sculptured over the millennia by battering wind and torrential rain.
   这里伫立着数千年来暴风骤雨 雕凿成的奇形怪状的石塔
9. Moisture rising as water vapour from the surface of the sea
   水蒸发成水蒸气从海面升起
10. is blown inland by wind.
    接着被风带到内陆
11. On reaching mountains, the moisture is forced upwards
    途经山脉的时候 水气被迫抬升
12. and as it cools, it condenses into cloud and finally rain -
    逐渐冷却 汇聚成云 最后形成降雨
13. the source of all fresh water.
    这便是所有淡水的来源
14. There is a tropical downpour here almost every day of the year.
    这里全年几乎每天都会降下热带暴雨

来自《行星地球 第一季 第三集 Planet Earth S01E03 淡水》第 11 行