dustman

n.清洁工

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, duster, dustiness, dustpan, dusty, Dutch, Dutch auction, Dutch barn, Dutch cap, Dutch elm, Dutch oven, Dutchman, duteous, dutiable, dutiful, dutifully, duty, duty-bound, duty-free, duvet, DV, dwarf, dwell,