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 집수는 강의 수위를 높이는 데 중요한 역할을 합니다.I jiyeog-ui jipsu-neun gang-ui suwi-reul nopineun de jungyohan yeoghal-eul hamnida.The catchment area of this region plays an important role in raising the river's water level.