noun ダウンロード 🔗共有 下部構造, 基盤 The supporting part of a structure (either physical or organizational; the foundation). Examples : "The school's substructures, including the foundation and supporting walls, were reinforced during the summer renovation. " 夏の改修工事中に、学校の基盤と支持壁を含む下部構造が補強されました。 structure organization part building AIとチャット語彙ゲーム読解練習
noun ダウンロード 🔗共有 路盤、道床 The earth or gravel that the railway tracks are embedded in. Examples : "After the heavy rains, engineers inspected the substructures of the railway line for any signs of erosion that could cause a derailment. " 大雨の後、技術者たちは脱線を引き起こす可能性のある浸食の兆候がないか、鉄道線の路盤を検査しました。 material geology structure building technical AIとチャット語彙ゲーム読解練習
