Once you get into the oxbow lakes, which change every year, the dolphins can operate in there really well.

一旦你进入每年都在变化的牛轭湖，海豚可以在那里很好地活动。

When that happens, the river's channel follows the straighter path downhill, leaving behind a crescent-shaped remnant called an oxbow lake.

当这发生时，河流沿着更笔直的道路下坡，留下一条新月形状的痕迹，这叫牛轭湖。

They twist and turn, creating oxbow lakes, terraces, and floodplains.

它们蜿蜒曲折，形成了牛轭 湖、梯田和洪泛区。