A wall built along a shore or bank to protect an area from floods. 防洪堤沿海滨或岸边修建的保护某块区域免遭洪水的堤坝。
Levees in New Orleans are expected to hold, though the storm's surge could still flood the city as water overtops levees. 新奥尔良的防洪堤预计不会受损,但风暴造成的浪潮可能会令水位高过大堤,从而淹没城市。