无人小车的英文是 "autonomous vehicle"，可以翻译为"自主移动的车辆"。这个词的来源可能源于人们对未来交通的想象，即人们希望有一天可以有无人驾驶的汽车，这类汽车可以自主行动，不需要人类驾驶。
例句：
Autonomous vehicles are expected to revolutionize the transportation industry.
无人小车预计将会革新交通行业。
Autonomous vehicles are being tested on pubpc roads in several cities around the world.
无人小车正在世界各地的几个城市的公路上进行测试。
Autonomous vehicles could potentially reduce traffic congestion and make roads safer.
无人小车可能有助于减少交通拥堵并使道路更安全。