压顶石

例句：

1. 1. The ancient temple was built on a solid rock, which is the _ 压顶石 _ of the structure.
   这座古老的寺庙建在一块坚实的岩石上，它是这个建筑的基石。
2. 2.The engineer used the _ 压顶石 _ to support the roof of the building.
   工程师利用这块石头来支撑建筑物的屋顶。
3. 3. The foundation of the house rests on the _ 压顶石 _, which is made of granite.
   房子的基础建立在花岗岩的压顶石上。