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
학교에서는 학생들의 성적에 따라 등급제를 운영합니다.Hakgyoeseoneun haksaengdeul-ui seongjeoge ttala deunggeupje-reul unyeonghamnida.The school operates a grading system based on students' grades.