dry-stone masonry

例句：

1. 1. The ancient city wall is made of dry-stone masonry.
   这座古老的城墙是用干砌石建造的。
2. 2.The architect used a mixture of dry-stone masonry and concrete to create the façade.
   建筑师使用干砌石和混凝土混合物来建造立面。
3. 3. The builders were using dry-stone masonry for the foundation of the new building.
   建筑工人正在用干砌石作为新建筑物的基础。