Few big ideas have excited tech investors over the past few years as much as self-driving vehicles, and billions of dollars have been spent developing driverless cars, trucks and delivery vans.
過去幾年里，幾乎沒什么重大創(chuàng)意能像自動駕駛汽車這樣讓科技投資者如此興奮，他們已經(jīng)投入巨額資金用于開發(fā)無人駕駛汽車、卡車和送貨車。
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