책 Insight - 초중급 - 7호 - 7D

the spoken form of a language specific to a certain region or people which is slightly different from the standard form in words and grammar

approved, authorized, or carried out by a recognized authority

related or belonging to a country or region other than your own

capable of using a language easily and properly

related to one's place of birth

words or expressions that are very informal and more common in spoken form, used especially by a particular group of people, such as criminals, children, etc.