相关单词同义词quietly, underground, secretly, privately, 近义词 behind the scenes 在幕后, privately 私下地, in secret 秘密地, behind closed doors 与外界隔绝地(秘密地)..., in confidence 秘密地, off the record 不供引用的临近词confidential, confidential paper, confidential phone, confidential files, confidential agent, confidential items, Confidential talks, confidential order, confidential clerk, confidential broker, confidential tariff 返回 confidentially