motor

n.马达，电动机；汽车 a.机动的；汽车的

motherhood, motherland, motherless, motherlike, motherliness, motherly, mothproof, motif, motile, motility, motion, motion picture, motionless, motivate, motivated, motivation, motivational, motive, motiveless, motley, motor bike, motor boat, motor car, motor cycle, motor-engine, motor-scooter, motor-way, motorbike, motorcade, motorcar, motorcycle, motoring, motorist, motorize, motorise, motorway, mottle, mottled, motto, mould, mould (US mold),