smokescreens
n. (掩护阵地和活动的)烟幕( smokescreen的名词复数 )
If something that you do or say is a smokescreen, it is intended to hide the truth about your activities or intentions.
He was accused of putting up a smokescreen to hide poor standards in schools.
他被指责放烟幕弹企图掩盖学校教育水平低下的事实。