1 the part of a vehicle that produces power to make the vehicle move 引擎;发动机:
This engine runs on diesel.这是一部柴油发动机。a car/jet engine汽车 / 喷气发动机☞Look at the note at motor. 参看 motor 的注释。 ☞picture at motorbike 见 motorbike 插图
2 (also locomotive) a vehicle that pulls a railway train 机车;火车头