hard stock brick

例句：

1. 1. The builders used hard stock bricks to build the walls.
   建筑师们使用硬砖来建造墙壁。
2. 2.The bricks are strong and durable, making them ideal for construction projects.
   这些砖块坚固耐用，非常适合建筑项目。
3. 3. The hard stock bricks were a testament to the skill of the craftsmen.
   坚硬的砖块证明了工匠们的技艺。