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
이십사절기는 농업과 기후를 이해하는 데 중요한 역할을 합니다.isipsajeolgi-neun nong-eob-gwa gihoe-reul ihaehaneun de jungyohan yeoghal-eul hamnida.The twenty-four solar terms play an important role in understanding agriculture and climate.