The water formed a cascade down the mountain.
水沿山泻下，形成一条瀑布。
When it rained, water would cascade down the window.
下雨的时候，雨水像瀑布一样沿着窗沿泻下。
When it rained, water would cascade down the window.
下雨时，水如瀑布似地往窗子下面流。
The river falls in a series of cascade down towards the lake.
河形成阶梯状瀑布泻入湖中。
The river falls in a series of cascade down towards the lake.
河形成阶梯状瀑布泻入湖中。
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