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
북경학은 중국의 역사와 문화를 연구하는 학문입니다.bukgyeonghak-eun jungguk-ui yeoksa-wa munhwa-reul yeongu-haneun hakmun-imnida.Pekingology is the study of China's history and culture.