tilestone的翻译，读音
英/'tailstәjn/
释义：
n. 石瓦, 石板
n. A kind of laminated shale or sandstone belonging to some
of the layers of the Upper Silurian.
n. A tile of stone.
n. A kind of laminated shale or sandstone belonging to some
of the layers of the Upper Silurian.
n. A tile of stone.