a layer of rock , sand or earth that contains water or allows water to pass through it
发音
例句
1. An aquifer is a water-bearing rock stratum such as sandstone and chalk. 地下蓄水层是一些有水的岩石层,如沙岩和白垩岩。 2. The wine region's first water came from an ancient aquifer. 用来灌溉这个地区葡萄园的第一批水来自古老的地下蓄水层。