中国的黄河和长江流域，以及印度河和恒河流域曾孕育出人类的灿烂文明。
Both the Yellow and Yangtze River Valleys in China, and the Indus and Ganges River Valleys were once the cradles of human civilisations.
中国的黄河和长江流域，以及印度河和恒河流域曾孕育出人类的灿烂文明。
Both the Yellow and Yangtze River Valleys in China, and the Indus and Ganges River Valleys were once the cradles of human civilisations.
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