由于造山运动抬升的山系断裂,使得山体海拔高、谷深、落差大,当在山间流动的河流遇到高山峭壁阻挡时,水流只能被动地流向较低的区域,从而形成了河湾。在我国大地上有许多河流景观,最为奇美的就是河流第一湾。 Owing to the mountain fault ruptured by orogeny, the mountain body is high in elevation, deep in valley and large in fall height. When rivers flowing in the mountains encounter obstacles blocked by alpine cliffs, the water flow can only passively pass to the lower area to form a river bay. There are many river landscapes in the land of our country, the most beautiful is the first bay of the river.