The motor in a machine, vehicle, or boat is the part that uses electricity or fuel to produce movement, so that the machine, vehicle, or boat can work. 发动机
noun [专属名词]发动机,马达;汽车,轿车;原动力
She got in and started the motor. 她上了车,发动了引擎。
adjective [原级]机动的;汽车的,车辆的;肌肉运动的,运动神经的;原动的,引起运动的
Motor vehicles and boats have a petrol or diesel engine. 机动的 Theft of motor vehicles is up by 15.9%. 机动车盗窃案增加了15.9%。