1. Reservoirs are drying up and farmers have begun to leave their land in search of water. 水库正在干涸，农民开始离开田地去寻找水源。
2. Reservoirs of this hot rock collect in the base of the mantle. 这些热岩石的储层聚集在地幔的底部。
3. However, even igneous and metamorphic rocks may act as groundwater reservoirs if extensive fracturing occurs in such rocks and if the fracture system is interconnected. 然而，如果火成岩和变质岩中发生大规模的断裂，并且断裂系统相互连通，那么它们也可以作为地下水储集层。
4. Sedimentary rocks—the most common rock type near the surface—are also the most common reservoirs for water because they contain the most space that can be filled with water. 沉积岩——地表附近最常见的岩石类型——也是最常见的储水层，因为它们可以装水的空间最多。
5. A shorter drought in which they exhausted their stored food supplies might already have gotten them in deep trouble, because growing crops required rain rather than reservoirs. 一场持续时间较短的干旱耗尽了他们的粮食储备，而这可能已经让他们陷入了困境，因为种植农作物需要降雨，而不是水库。
