semi·for·mal /-ˈfɔrməl/
(a.)半正式的
semi-formal
adj : moderately formal; requiring a dinner jacket; "he wore
semiformal attire"; "a black-tie dinner" [syn: semiformal,
black-tie]
semiformal
adj : moderately formal; requiring a dinner jacket; "he wore
semiformal attire"; "a black-tie dinner" [syn: semi-formal,
black-tie]