撒哈拉大沙漠英文简介

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撒哈拉大沙漠英文简介（66字）
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The Sahara Desert is the world's largest hot desert. It is in northern part of Africa. Some of the sand dunes in this desert is as high as 180 meters. The highest peak in the Sahara Desert is Emi Koussi in northern Chad. People lived on the edge of the desert thousands of years ago. Plants such as the olive tree are found to grow here.