catchment basin英 [ˈkætʃmənt ˈbeɪsn]美 [ˈkætʃmənt ˈbeɪsn]集水盆地;流域英英释义nounthe entire geographical area drained by a river and its tributariesflood control in the Missouri basinSynonym:river basinbasinwatersheddrainage basincatchment areadrainage area双语例句