keep someone in the dark
不让某人了解某事，对某人隐瞒某事
口语·描述隐瞒
英文释义
to intentionally withhold information from someone
例句
They kept me in the dark about the layoffs until the last minute.
典故来源
源自'黑暗'比喻无知状态，指故意不让某人知晓信息，常见于秘密场景。