doorknob

n.门把手

donkey, donkey engine, donkey jacket, donkey-work, donnish, donor, doodle, doom, doomed, doomsday, door, door-bell, door-frame, door-handle, door-keeper, door-knob, door-knocker, door-plate, door-way, doorbell, doorman, doormat, doornail, doorpost, doorstep, doorstop, doorway, dope, dopey (also dopy), Doric, dorm, dormancy, dormant, dormer, dormitory, dormitory town, dormouse, dorsal, dory, DOS,