1.C 习语，成语 a group of words with a special meaning 2.U （在语言等方面所表现的）风格，特色 use of language peculiar to a period or an individual
句型例句
Every language has its own idioms.每种语言都有自己的习语。 I like the idiom of modern popular music.我喜欢现代流行音乐的风格。 It was an old building in the local idiom.这是一座具有当地特色的古建筑。