noun · an event, revelation, or product that causes a major shock or produces figurative shockwaves

这位球星宣布退役的消息给体育界投下了一枚震撼弹。

noun · a non-lethal explosive device used to temporarily disorient an enemy's senses

特警向屋内投掷了一枚震撼弹，随即冲进去制服了歹徒。