For tile work, a very thin mortar called grout is used.

制瓦使用的是一种叫做薄泥浆的很薄的砂浆。

youdao

For tile work, a very thin mortar called grout is used.

制瓦使用的是一种叫做薄泥浆的很薄的砂浆。

youdao