noun 다운로드 🔗공유 개척자, 변경인 A person who lives on the borders of a country, or in a wild and undeveloped area on the fringes of civilization. Examples : "Daniel Boone was a famous frontiersman, exploring and settling the wilderness of Kentucky. " 다니엘 분은 유명한 개척자였으며, 켄터키의 황야를 탐험하고 정착시켰습니다. person history society geography environment culture area AI와 채팅어휘 게임독해 연습