floodplain /'flʌdplein/ 托福英语词汇 📖 中文释义 n. 泛滥平原 🧩 词形变化 复数 floodplains 🔗 常用搭配 floodplain warehousesbuilt on floodplain 📘 English Definition（英文释义） n. a low plain adjacent to a river that is formed chiefly of river sediment and is subject to flooding ← floodometer floodplains →