small stone block

例句：

1. 1. The small stone block was carefully placed in the corner of the room.
   这个小石块被小心地放在房间的角落里。
2. 2. The builders used small stone blocks to build the walls.
   建筑工人用小石块来建造墙壁。
3. 3. The small stone block is a popular souvenir for tourists visiting the city.
   这个小石块是游客参观城市时受欢迎的纪念品。