在线词典放空炮发射出去的炮弹未击中目标。比喻说话未达到目标。拼音fàng kōng pào解释发射出去的炮弹未击中目标。比喻说话未达到目标。英文释义(lit.) to fire blank shots; (fig.) to be all talk and no action; to shoot one's mouth off; to make empty promises