愚蠢的侍者成本

dumb waiters───n.[机]小型送货升降机；送菜升降机，餐用升降机

dumb waiter───n.[机]小型送货升降机；送菜升降机，餐用升降机

dumbwaiters───n.升降机；餐桌旁的上菜架

dumbwaiter───n.升降机；餐桌旁的上菜架

duster coat───防尘外套

cut the cost───减少花费；降低成本

dumb canes───哑巴手杖

dumb terminal───哑终端，简易终端；低能终端；不灵活终端

dump trucks───自卸卡车

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