Floodplain
01
洪泛区, 泛滥平原
a low-lying area of land next to a river, composed primarily of river sediments, that is prone to flooding
例子
The city constructed levees along the floodplain to protect nearby homes from rising waters.
该市沿洪泛区修建了堤坝，以保护附近的房屋免受上涨水位的侵害。
