[] () the fact of keeping information secret 不揭露；守秘密◆The two companies signed a non-disclosure agreement in order to protect their confidential information. 两家公司签署了一项保密协议以保护他们的机密资料。◆The company was fined for non-disclosure of earnings. 这家公司因不披露收入而被罚款。OPPdisclosure