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
내식은 새로운 정보가 들어오는 과정을 설명합니다.Naesik-eun saeroun jeongboga deureoonun gwajeong-eul seolmyeonghamnida.Ingression describes the process of new information coming in.