concrete hollow block

例句：

1. 1. The construction crew used concrete to pour the foundation of the new building.
   建筑工人使用混凝土浇筑新建筑的基础。
2. 2.The engineer recommended using a reinforced concrete beam for the roof structure.
   工程师建议使用钢筋混凝土梁作为屋顶结构。
3. 3.Concrete is commonly used in road construction due to its durability and strength.
   由于其耐用性和强度，混凝土常用于道路建设。