under the radar
成語所屬單字radar
under the radar — 慣用語
1. happening or existing without being noticed by the public or by those in charge
1.慣用語
釋義
不引人注目；低調地；暗中進行
happening or existing without being noticed by the public or by those in charge
例句
The band released four albums under the radar before finally becoming famous.
Shanti managed to slip under the radar during the meeting so nobody asked her any questions.