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A hot air ballon is pictured during the 2018 Canowindra International Balloon Challenge in Canowindra, New South Wales, Australia, on April 27, 2018. (Xinhua/Bai Xuefei)
A hot air ballon is pictured during the 2018 Canowindra International Balloon Challenge in Canowindra, New South Wales, Australia, on April 27, 2018. (Xinhua/Bai Xuefei)