人类的文明，最早均起始于大江大河之畔，世界四大古代文明都发源于一些著名的河流两岸。
Human civilizations are all originated along big rivers, for example, the four ancient civilizations of the world.
人类的文明，最早均起始于大江大河之畔，世界四大古代文明都发源于一些著名的河流两岸。
Human civilizations are all originated along big rivers, for example, the four ancient civilizations of the world.
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