natural watercourse

• 天然水道

natural watercourse的用法和样例：

例句

1. This species of fish successfully transferred to that river through a watercourse.
   这种鱼成功地通过一条水道到了那条河流。
2. It was located between the mouth of the Singapore River and a small watercourse, which is known today as Stamford Canal.
   位置在新加坡河口与一个今天称作史丹福渠的水道之间。