idiom
名词 idiom:
a manner of speaking that is natural to native speakers of a language
同义词:parlance
the usage or vocabulary that is characteristic of a specific group of people
the style of a particular artist or school or movement
同义词:artistic style
an expression whose meanings cannot be inferred from the meanings of the words that make it up
同义词:idiomatic expression, phrasal idiom, set phrase, phrase