- They know how to use it sparingly.
他们知道如何节省使用 - Here, they depend on wells replenished by fossil water,
这里 他们依靠以原生水补充的水井 - Which accumulated underground in the days when it rained on these deserts,
这些水是在25000年前沙漠下雨的时候 - 25,000 years ago.
渗入地下形成的 - Fossil water also enables crops to be grown in the desert...
原生水也能让庄稼在沙漠中生长 - To provide food for local populations.
为当地人提供粮食 - The fields' circular shape...
管子围绕一个中心轴灌溉耕地