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Photo taken on May 10, 2021 shows the Kazungula bridge linking Botswana and Zambia. Botswana and Zambia on Monday jointly opened the Kazungula bridge, which is composed of a roadway and a rail track over the Zambezi river that connects the two countries, as well as a one-stop border post. (Photo by Tshekiso Tebalo/Xinhua)
