The Superintendent of Public Works gives orders for all watercourses to be inspected.公共建设部部长下令检查所有河道。There are plains of hard sands and plateaus with dried - up watercourses, the there are mountain ranges.这里有平坦的戈壁滩,有水道干涸...

n.水道，河道( watercourse的名词复数 )...

watercourses的音标：...