It has travelled a thousand miles from where it fell as rain. 水流自降雨地流到此处已经穿越了近两千公里

68. ..but entire landscapes.
    还改变了整片地貌
69. Every year, over a trillion litres of water
    每年 超过一万亿升水
70. flow into the Kalahari Desert.
    流入卡拉哈里沙漠
71. It has travelled a thousand miles from where it fell as rain.
    水流自降雨地流到此处已经穿越了近两千公里
72. And on arrival...
    水流的到来
73. ..it turns the Kalahari...
    将卡拉哈里沙漠
74. ..into a vast oasis.
    变成了一片绿洲

来自《行星地球 第三季 第四集 Planet Earth S03E04 淡水》第 71 行