dumb waiter

(a) (US lazy Susan) stand with shelves for holding food ready to be served 食品台; 食品架. (b) small lift for carrying food, etc from one floor to another, esp in a restaurant 小型升降机（尤指饭店中传送食物者）.

duenna, duet, duff, duffer, duffle (also duffel), duffle bag, duffle-coat, dug, dug-out, duke, dukedom, dulcet, dulcimer, dull, dullard, dullness, dully, duly, dumb, dumb show, dumb-bell, dumbfound (also dumfound), dumbly, dumbness, dumdum, dummy, dummy run, dump, dumper, dumpiness, dumping, dumpling, dumps, dumpy, dun, dunce, dunce's cap, dunderhead, dune, dung,