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
간선망은 도시의 교통 체계를 연결하는 중요한 역할을 합니다.ganseonmang-eun dosi-ui gyotong chaegye-reul yeon-gyeohaneun jungyohan yeoghal-eul hamnida.The trunk network plays an important role in connecting the city's transportation system.