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
산정량기를 사용하여 산의 높이를 측정할 수 있습니다.sanjeongnyanggireul sayonghayeo sanui nopireul cheugjeonghal su itsseumnida.You can use an acicimeter to measure the height of the mountain.