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
겨울에 방열체가 고장 나면 집이 매우 추워질 수 있습니다.gyeoure bangyeolchega gojang nameun jib-i maeu chuwojil su issseubnida.If the radiator breaks in winter, the house can become very cold.