Back door
01
后门, 后门
a door that is located behind or at the side of a building
语法信息
有生性状态
无生命
形态构成
复合词
可数
复数形式
back doors
例子
The delivery person knocked on the back door, carrying packages for the kitchen staff.
送货员敲了敲后门，为厨房工作人员送包裹。
02
后门, 秘密入口
a secret or underhand means of access (to a place or a position)
03
后门, 隐藏访问
an undocumented way to get access to a computer system or the data it contains
