Groundwater refers to water stored in subsurface aquifers, or permeable layers of rock, that has percolated, or "infiltrated," through the soil having originally fallen as rain or come from rivers, lakes and reservoirs.
地下水，指的是來自雨水和河流、湖泊、水庫等「地面水」滲入土壤後，蓄積在地面下的各層含水層中的水。