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
국적선은 특정 국가의 국적을 가진 선박입니다.gukjeokseoneun teukjeong gukga-ui gukjeogeul gajin seonbak-imnida.A nationality ship is a vessel that has the nationality of a specific country.