单词：watercourses
音标：[ˈwɔ:təkɔ:siz] ；
n. 水道, 河道( watercourse的复数形式 )
n. natural or artificial channel through which water flows
n. a natural body of running water flowing on or under the earth
n. a conduit through which water flows
n. a natural body of running water flowing on or under the earth
n. a conduit through which water flows