smokescreen
noun [ C ] uk/ˈsməʊk.skriːn/ us/ˈsmoʊk.skriːn/
（用于掩盖真实意图的）烟幕
something that hides the truth about someone's intentions
Instead of doing something about the problem, the city council is hiding behind a smokescreen of bureaucracy. 市议会躲在官僚作风的烟幕后，不采取措施解决问题。
（战斗中用于隐蔽军队的行动和位置的）烟幕
an artificial cloud of smoke that is used to hide the movements or positions of soldiers from the enemy