watercourse
n. 水流；河道；水道
近义词：river，vein，outlet，waterway，stream，channel，rivulet，brook，canal，ditch，conduit，
英英释义
Noun
- natural or artificial channel through which water flows
- a natural body of running water flowing on or under the earth
- a conduit through which water flows
例句
用作名词(n.)
- There are lots of chemicals that pollute the local watercourse.大量化学物质污染着当地水流。
- This river has a zigzagging watercourse and many branches.这条河的河道曲折，汊流众多。