back door
Noun
a secret or underhand means of access (to a place or a position);
"he got his job through the back door"
an undocumented way to get access to a computer system or the data it contains
an entrance at the rear of a building
back door例句
用作名词(n.)
Does the back door have a lock on it?
后门有锁吗？
We slip out of the postern door of the castle.
我们从城堡的后门溜出。
back door近义词
backdoor back entrance
