薄泥浆

That’s what grouting mosaics is all about-mushing the gooey-ness into all the cracks.

用填塞马赛克作品的就开心地玩巴，把黏乎乎的抹进所有。

"For tilework, a very thin mortar called grout is used. Pointing is the process of finishing a masonry joint. "

瓦使用的一种叫做的很的砂。完成瓦黏合可削尖。