英语
西班牙语
单语范例（未经PONS编辑处理）
With their driverless tractor, they had one person designated as a safety operator.
en.wikipedia.org Platform screen doors were installed to protect passengers from falling under driverless trains.
en.wikipedia.org It is served by 25 driverless trains travelling at an average speed of 110 km/h, and stopping 2030 seconds at each station.
en.wikipedia.org It is considered driverless because it operates without the presence of a human inside the tractor itself.
en.wikipedia.org Subsequently, the idea of a driverless tractor emerged in 2011 and 2012.
en.wikipedia.org