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
상호이주는 두 나라 간의 인구 이동을 의미합니다.sanghoijuneun du nara gan-ui ingu idongeul uimihaebnida.Intermigration refers to the movement of populations between two countries.