In the long term, we won't be able to irrigate huge regions of farmland if we don't have the water to begin with.
从长远角度看，如果不从治水着手，我们就不会有水来灌溉大面积的农田。
2
For centuries, the population has depended on meltwater from the glaciers of the high mountains to irrigate their farmland.
几个世纪以来，这里的人们依靠来自高山上冰川的融水灌溉农田。
3
If all goes well, it may even fulfil an old dream to irrigate swathes of farmland in northern Sudan, while sending electricity to run the thirsty air-conditioners of Khartoum.