几亿年前，蜿蜒的河流的两岸是什么呢？
What was around the bend in rivers hundreds of millions of years ago?
中央的滴水湖和蜿蜒的河流可用做洪水控制、排水和风景为目的。
Dishui Lake in the center and meandering waterways running around are for the purpose of flood controlling, drainage and landscape.
它(照片)十分清晰，从中可以看出街道、工厂、一条蜿蜒的河流以及码头、潜艇修藏坞等。
It is remarkably clear. It shows streets and factories and a winding river and docks and submarine pens.
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