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Photo taken on Feb. 25, 2020 shows the coast in sand and dust storm in Dakar, Senegal. The city saw a sand and dust storm Tuesday. (Photo by Louis Denga/Xinhua)

Photo taken on Feb. 25, 2020 shows the coast in sand and dust storm in Dakar, Senegal. The city saw a sand and dust storm Tuesday. (Photo by Louis Denga/Xinhua)