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
적도제는 지구의 기후를 이해하는 데 중요합니다.jeokdoje-neun jigu-ui gihu-reul ihaehaneun de jungyohamnida.The equatorial system is important for understanding the Earth's climate.