拉斯维加斯位于山谷地带其城市用水来自于两条凿穿岩石的水渠。
The Las Vegas valley gets its water through two long channels drilled through the rock.
25岁的哈米德•阿克巴说：“就是这样”。 他来斯瓦特山谷地区，现在住在当地的中心城镇白沙瓦。
“This is it, ” Hamid Akbar, 25, a refugee from the Swat Valley, said in Peshawar, the regional capital.
其中变化最大的是中央山谷地区。
The biggest change is occurring in inland regions such as the Central Valley.
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