贫瘠地;
Arid and extremely arid land are deserts, and semiarid grasslands generally are referred to as steppes.
干旱和极度干旱的土地是沙漠, 半干旱草原和通常被称为草原.
They live on the arid land.
他们就靠那干燥的土地生活.
What they are doing is transformation of arid land into irrigated fields.
他们正在做的工作就是变旱地为灌溉地.
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