天機不可泄漏 [ㄊㄧㄢ ㄐㄧ ㄅㄨˋ ㄎㄜˇ ㄒㄧㄝˋ ㄌㄡˋ; tian1 ji1 bu4 ke3 xie4 lou4] lit. mysteries of heaven must not be revealed (idiom); must not be revealed I am not at liberty to inform you. ◄ ►