noun 다운로드 🔗공유 자갈, 조약돌 A rounded stone from a river bed, fit for use as ballast in ships and for paving roads. Examples : "The old European city was charming, with narrow streets paved with cobblestones. " 오래된 유럽 도시는 자갈로 포장된 좁은 골목길로 매력적이었다. material geology architecture AI와 채팅어휘 게임독해 연습
noun 다운로드 🔗공유 자갈 The material made from cobblestones. Examples : "The bumpy road was made of cobblestones, making the bike ride uncomfortable. " 울퉁불퉁한 도로는 자갈로 만들어져 자전거 타기가 불편했다. material building architecture AI와 채팅어휘 게임독해 연습