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
광천학은 온천의 치료 효과를 연구하는 학문입니다.Gwangcheonha-neun oncheon-ui chiryo hyogwa-reul yeonguhaneun hakmun-imnida.Balneology is the study of the therapeutic effects of hot springs.