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
교육의 개별화는 학생들의 필요에 맞춰져야 한다.gyoyug-ui gaebyeolhwa-neun haksaengdeul-ui pilyo-e majchwojyeoya handa.The individualization of education should be tailored to the needs of the students.