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
도서관에서 책을 반납하지 않으면 연체료가 발생합니다.Doseogwaneseo chaeg-eul bannapaji anheumyeon yeonchaeryoga balseonghamnida.If you do not return the book to the library, a late fee will be incurred.