behind closed doors
閉門造車
書面/口語·指秘密進行或私下處理
英文釋義
in secret; privately; hidden from public view
例句
The deal was negotiated behind closed doors without public input.
典故來源
源自門作為隱私屏障的隱喻,'closed doors'象征秘密和隔絕,常用于描述私下決策。