Definition: privately and not in public Level: C2
大多数交易都是私下进行的。
Most of the deals were done ___behind ___closed ___doors.
影响整个世界的决定都是在私下做出的，并且是绝密的。
Decisions which affect the whole world are made ___behind ___closed ___doors and are top secret.
谈判在私下进行，以避免媒体审查。
The negotiations took place ___behind ___closed ___doors to avoid media scrutiny.
