tradesman's entrance

剑桥词典

the side or back door of a large house , used, especially in the past, by people delivering goods who were not allowed to use the door at the front of the house
（舊時送貨用的）後門
I've forgotten my front-door key , so we'll have to use the tradesmen's entrance . 我忘帶了前門鈅匙，因此我們衹好從後門進屋。 返回 tradesman's entrance