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
골학은 뼈의 구조와 기능을 연구하는 학문입니다.gohak-eun ppyeo-ui gujo-wa gungyeong-eul yeongu-haneun hakmun-imnida.Osteology is the study of the structure and function of bones.