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
기득권층은 사회의 불평등을 유지하려고 합니다.gideugwoncheung-eun sahoe-ui bulpyeongdeung-eul yujihalgeoya hamnida.The privileged class tries to maintain social inequality.