smoke screen
近义词：smokescreen，
英英释义
Noun
- (military) screen consisting of a cloud of smoke that obscures movements
- an action intended to conceal or confuse or obscure;
"requesting new powers of surveillance is just a smokescreen to hide their failures"
例句
用作名词(n.)
- A pall of smoke hung over the town.市镇上空笼罩着一层烟幕。
- There was stage smoke and glitter grit on the runway.在展示台上有舞台烟幕和闪光的沙砾。