donjon

n large, strongly fortified central tower of a medieval castle 中世纪城堡中巨大而坚固的主塔.

dominance, dominant, dominate, dominated, domination, domineer, domineering, domineeringly, Dominican, dominion, domino, domino effect, don, Don Juan, Don Quixote, don't, don'ts, donate, donation, done, 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,