letter box

释义

• noun（屋外的）信箱，（门上的）投信口；（建筑物大门口或路旁供收信人取信的）信箱

英英释义

• nouna private box outside a house or a building, or a hole in a door for putting letters through

• nouna small box near the main door of a building or by the road where letters are left for the owner to collect

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