quarrystone

例句：

1. 1.The quarrystones were usedto build the castle.
   这些采石场的石头被用来建造城堡。
2. 2. The builders used the quarrystonesas a base for their new project.
   建筑工人用这些采石场的石头作为他们新项目的地基。
3. 3. Thequarrystonesare beautiful and have been usedin many historical buildings.
   这些采石场的石头很美丽，已经被用于许多历史建筑中。