李笑来-新托福iBT词汇分类突破打印版
1.Basic building materials include: timber, mud, stone, marble, brick, tile, steel, and cement concrete. Masonry walls are built with stones or bricks, cohered through the use of mortar, first composed of lime and sand. The profusion of aluminum and its anodized coatings provided cladding material that was lightweight and virtually maintenance free. Glass was known in prehistory and is celebrated for its contributions to Gothic architecture.