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People prepare a hot air balloon during the 2020 International Balloon Festival in Leon City of Guanajuato State, Mexico, on Nov. 13, 2020. (Photo by Luis Licona/Xinhua)
People prepare a hot air balloon during the 2020 International Balloon Festival in Leon City of Guanajuato State, Mexico, on Nov. 13, 2020. (Photo by Luis Licona/Xinhua)