Stonesfield Slate

例句：

1. 1. The ancient StonefieldSlate was discovered in the area.
   古老的斯通菲尔德石板在该地区被发现。
2. 2. Theslate is used to make tiles for buildings.
   这种石板被用来制作建筑用的瓷砖。
3. 3.The slate has been used for centuries asa building material.
   这种石板被用作数百年的建筑材料。