Most of the world's potablewater—freshwater suitable for drinking—is accounted for by groundwater, which is stored in the pores and fractures in rocks.
世界上大部分的饮用水——适合饮用的淡水——是由地下水提供的，它储存在岩石的孔隙和裂缝中。
2
Essential primary health care; minimum essential and nutritious food; sanitation; safe and potablewater; and essential drugs are included in the core content.
这项核心内容包括基本初级卫生保健、最基本和有营养的食物、卫生条件、安全的饮用水，以及基本药物。
3
Droughts can decrease the availability of potablewater and can ruin crops, making food scarce.