noun🔗Share하부 구조, 기초The supporting part of a structure (either physical or organizational; the foundation)."The old house needed repairs because the substructure, the wooden frame beneath the floor, was rotting. "오래된 집은 바닥 아래의 나무 프레임인 하부 구조가 썩고 있어서 수리가 필요했다.structurearchitecturebuildingorganizationpartChat with AIVocabulary GamePractice Reading
noun🔗Share노반, 하부 구조The earth or gravel that the railway tracks are embedded in."The train tracks felt stable because the construction crew had recently reinforced the substructure with fresh gravel. "건설팀이 최근 신선한 자갈로 노반을 보강했기 때문에 기차 선로가 안정적으로 느껴졌다.materialgeologystructureChat with AIVocabulary GamePractice Reading
