N-COUNT
(掩蓋某人的活動或真實意圖的)煙幕，幌子
If something that you do or say is a smokescreen, it is intended to hide the truth about your activities or intentions.
例句
He was accused of putting up a smokescreen to hide poor standards in schools.
他被指責放煙幕彈企圖掩蓋學校教育水平低下的事實。