livery
/ˈlɪvərɪ; `lɪvərɪ/ n
1 [U, C] special uniform such as that worn by male servants in a great household or by members of the London trade guilds （大户人家的男仆或伦敦同业公会的）制服
in/out of (ie wearing/not wearing) livery 穿[不穿]制服.
2 [U] (rhet 修辞) covering 装束
trees in their spring livery, ie with new leaves 披上春装的树木.