The Grand Rift Valley East Africa
April 6，2006
The Grand Rift Valley of Eastern Africa
Zigzags for thousands of li，
It formed 10，000 years ago，and how seas become mulberry fields； ...
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The Grand Rift Valley East Africa
April 6，2006
The Grand Rift Valley of Eastern Africa
Zigzags for thousands of li，
It formed 10，000 years ago，and how seas become mulberry fields； ...