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Algeria planted a green wall of trees across the edge of the Sahara to stop the desert sand from spreading.. Mauritania planted a similar wall around Nouakchott, the capital.[r]
Đang tải... (xem toàn văn)
Algeria planted a green wall of trees across the edge of the Sahara to stop the desert sand from spreading.. Mauritania planted a similar wall around Nouakchott, the capital.[r]
Ngày đăng: 20/01/2021, 21:42