noun 다운로드 🔗공유 낙석 A quantity of rocks that has fallen from a cliff etc. Examples : "The hiking trail was closed due to recent rockfalls, making it too dangerous to pass. " 최근 낙석으로 인해 하이킹 코스가 폐쇄되어 통과하기에는 너무 위험했습니다. geology disaster environment AI와 채팅어휘 게임독해 연습