watercourses的例句（watercourses在句子中的用法）

• Regulate rivers and watercourses this ancient problem is becoming more complex and stem. 治水这一古老的问题正在变得更为复杂严峻.
• 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,有水道干涸了的高原, 还有连绵不断的山岭.
• 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。