●keep your ˈhair on ( keep your ˈshirt onless frequent) (BrE, informal) used for telling sb who is angry or very excited about sth to keep calm别发火；沉住气◆Keep your hair on, Mum. You can hardly see the damage. 冷静点，妈妈。几乎看不出什么损坏。◆Keep your shirt on! We’ve got plenty of time to get to the airport. 别着急！我们有足够的时间赶到机场。
