畅通的

例句：

1. 1.The road was always clear and the traffic was always flowing.
   这条道路总是畅通，交通总是流畅。
2. 2. The river flows smoothly through the valley.
   这条河流在山谷中流得非常顺畅。
3. 3. The bridge is designed to be unobstructed by any obstacles.
   这座桥被设计成没有任何障碍物可以阻挡它的通行。