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
토목국에서 새로운 건설 프로젝트를 시작했습니다.Tomokgukeseo saeroun geonseol peurojekteureul sijakhaessseubnida.The Engineering Bureau has started a new construction project.