trolleybus
noun [ C ] UK uk/ˈtrɒl.i.bʌs/ us/ˈtrɑː.li.bʌs/
无轨电车
a public transport vehicle with rubber tyres that travels along ordinary roads in towns and is driven by electricity supplied from a wire above the road
The trolleybus does not run on tracks. 无轨电车不在轨道上行驶。