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
한국어에서 제등수는 두 개의 숫자가 결합된 것입니다.Hangug-eoeseo jedungsuneun du gaeui sujaga gyeolhabdoen geos-ibnida.In Korean, a compound number is a combination of two digits.