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
하층사회는 종종 사회의 불평등을 반영합니다.hachungsahoe-neun jongjong sahoe-ui bulpyeongdeung-eul banhyeonghamnida.The lower class often reflects the inequalities of society.