duplicator

n machine for making copies of written or typed material 复印机.

dun, dunce, dunce's cap, dunderhead, dune, dung, dungarees, dungeon, dunghill, dunk, duo, duodecimal, duodenal, duodenum, duologue, dupe, duple time, duplex, duplicate, duplication, duplicitous, duplicity, durability, durable, durables, duration, duress, during, dusk, duskiness, dusky, dust, dust bowl, dust devil, dust-cart, dust-cover, dust-jacket, dust-sheet, dust-up, dustbin,