Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
방언학은 지역 언어의 변화를 연구하는 학문입니다.bang-eonhak-eun jiyeog eoneo-ui byeonhwa-reul yeongu-haneun hakmun-imnida.Dialectology is the study of the variations in regional languages.