run-of-the-river plant

例句：

1. 1. The run-of-the-river plantis a rare species that can only befound in certain areas of the world.
   这种河流旁的植物是一种只能在特定世界地区找到的稀有物种。
2. 2. Therun-of-the-river plant has beenused for centuries as a natural remedyfor various ailments.
   这种河流旁的植物被用于几个世纪作为自然疗法治疗各种疾病。
3. 3. The run-of-the-river plant is animportant indicator of the health of the ecosystem.
   这种河流旁的植物是生态系统健康状况的重要指示器。