On the outskirts of the eastern Chinese port city of Tianjin, three children, a young professional and an elderly couple excitedly board a black-and-white self-driving bus and ride on board for 2.5km through quiet streets.
在中國東部港口城市天津的郊區,三個孩子、一位年輕的專業人士和一對老夫婦興奮地登上了一輛黑白兩色的自動駕駛巴士,並搭乘這輛車在安靜的道路上行駛了2.5公里。
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