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
그 배의 후갑판원은 항해를 안전하게 유지하는 역할을 합니다.geu baeui hugappanwon-eun hanghaereul anjeonhage yujihaneun yeogaleul hamnida.The afterguard of the ship plays a role in keeping the navigation safe.