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
관념의 차이가 사람들 사이에 갈등을 일으킬 수 있다.gwan-nyeom-ui cha-iga sa-ram-deul sa-i-e gal-deung-eul il-eu-skil su it-da.The difference in concepts can cause conflicts among people.