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
전국전력계통망은 모든 지역에 전력을 공급합니다.jeonguk jeollyeok gyetongmang-eun modeun jiyeoge jeonryeok-eul gonggeubnida.The national grid supplies electricity to all regions.