rectangular stone slab

例句：

1. 1. The builders laid downthe rectangular stone slabs for the new road.
   建筑工人铺设了新的马路上的矩形石板。
2. 2. Therectangular stone slabs werea welcome addition to the garden.
   矩形石板是花园中受欢迎的添加物。
3. 3. Therectangular stone slabs werecarefully placed to ensure they fit perfectly.
   矩形石板被小心放置以确保它们完美契合。