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
백팔십도제는 온도를 측정하는 방법 중 하나입니다.baekpal-sipdojeneun onduleul cheugjeonghaneun bangbeob jung hanabnida.The eighty-eight degrees system is one of the methods for measuring temperature.