Water needs somewhere to go, so it floods the river banks.

水需要地方流淌, 所以洪水冲向河岸。

Instead, most water flowed in from nearby mountains, channeled by seasonal streams that often flooded their banks.

相反， 大部分水从附近的山区流入，由经常淹没河岸的季节性溪流引导。

I got to know its temperamental nature and where it would flood its banks at one moment, and then shortly thereafter, you would see its dry shorelines.

我开始了解它的喜怒无常的本性，以及它会在某一时刻淹没它的河岸，然后不久之后，你就会看到它干涸的海岸线。

Now in 1905 they got it a little bit wrong and also the Colorado River flooded its banks and used the channels they were building, basically, to flood this whole plain.

1905年的时候由于一点差错, 导致科罗拉多河的水将这片地淹没这整片平原基本上被他们所建造的沟渠的水给淹没了。