Pottery bricks and tiles have been important building materials.

从周朝起，陶瓦、陶砖一直是重要的建筑材料。

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This building is made of gray bricks and tiles.

这个建筑是用青砖素瓦建成的。

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This building is made of grey bricks and tiles.

这个建筑是用青砖素瓦建成的。

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This building is made of grey bricks and tiles.

这个建筑是用青砖素瓦建成的。

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