The Sahara is the largest desert in the world.
撒哈拉大沙漠是世界上最大的沙漠。
The desert Covers a total area of 47,000 square kilometers, the forth largest in the world.
巴丹吉林沙漠总面积4.7万平方公里，世界第四大沙漠。
The desert Covers a total area of 47,000 square kilometers, the forth largest in the world.
巴丹吉林沙漠总面积4.7万平方公里，世界第四大沙漠。
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