June 27， June 26，皇冠体育网址， 2019 ecns.cn Photo shows an autonomous electric bus at the Xiongan public service center in Xiongan New Area，皇冠体育官方，皇冠体育网站， Self-driving bus debuts in Xiongan 10:19，皇冠体育官方， 2019. (Photo/China News Service) ，皇冠体育网址， North China's Hebei Province，。