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
베링해협은 아시아와 북미를 나누는 중요한 해협입니다.Beringhaehyeop-eun Asia-wa Bukmi-reul nanuneun jungyohan haehyeob-imnida.The Bering Strait is an important strait that separates Asia and North America.