プログレッシブ和英中辞典(第３版)の解説
うらぐち【裏口】
the back door
- みんな裏口から入って来た
They all entered by the back door.
裏口営業｜「a backdoor [an illegal] business
裏口入学｜
- 彼は裏口入学したらしい
He seems to have bought his way into the school.