In an industrial corner of Pittsburgh’s Strip district lies a quiet alley lined with rusted steel beams. They support an old railway bridge that hints at this steel town’s past. But tucked at the end of the alley, hidden from the view of passers-by, sits a gleaming research centre that points to a rather different future, one in which self-driving taxi fleets will have revolutionised urban transportation.
在匹茲堡市橫排區(Strip District)一個工業區的角落，有一條僻靜的小巷，巷子里成排地豎立著生銹的鋼梁，它們支撐著一座舊鐵路橋，提醒人們該鋼鐵城的過去。但在小巷盡頭路人看不見的地方，卻坐落著一幢明晃晃的研發大廈，預示著一種截然不同的未來——無人駕駛出租車將掀起城市交通的革命。
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