ungated flow

例句：

1. 1. The ungated flow of the river is refreshing.
   河流的无障碍流动令人感到清新。
2. 2. The ungated flow of the river is refreshing.
   河流的无障碍流动令人感到清新。
3. 3. The ungated flow of the river is refreshing.
   河流的无障碍流动令人感到清新。