柯林斯词典watercourse /ˈwɔːtəˌkɔːs/ (also water course) (watercourses) 1. N-COUNT A watercourse is a stream or river, or the channel that it flows along. 水道[正式] 返回 watercourse剑桥词典a stream of water such as a river or canal , or the channel along which it flows 沟渠；河道；水道 返回 watercourse