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
조도계를 사용하여 방의 조명을 측정했습니다.jodogye-reul sayonghayeo bang-ui jomyeong-eul cheugjeonghaessseubnida.I used the illuminometer to measure the lighting in the room.