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
이 지역의 지질도를 보면 다양한 암석이 분포하고 있다.I jiyeog-ui jijildo-reul bomyeon da-yanghan amseog-i bunpo-hago itda.Looking at the geological map of this area, various rocks are distributed.