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
우리 학교의 분급제는 학생들의 성적을 공정하게 평가합니다.uri hakgyoui bunggeupjeun haksaengdeureul seongjeogeul gongjeonghage pyeonggahamnida.The grading system of our school evaluates students' grades fairly.