dumb waiter
US /ˈdʌmˌweɪ.tər/
UK /ˈdʌmˌweɪ.tər/

1.
传菜梯, 升降机
a small elevator or lift, typically in a restaurant or house, used for carrying food or other goods between floors.
:
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The chef sent the dishes up to the dining room using the dumbwaiter.
厨师用传菜梯把菜送到了餐厅。
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Our old house has a small dumbwaiter that goes from the kitchen to the second floor.
我们老房子里有一个小传菜梯,从厨房通到二楼。