noun 下载 🔗分享 水道,河道,水路。 Any channel, either natural or artificial, through which water flows. Examples : "The small stream behind my house is a natural watercourse that flows into the river. " 我家后面的小溪是一条天然水道,流入那条大河。 geography nature environment 与AI对话词汇游戏阅读练习