Grout is the wet mix you push into the little gaps between tiles on a wall or floor. It is sand, water, and cement or lime. When it dries, it holds the tiles and stops water sneaking behind them.

Grout grout（填縫劑） is是 the wet mix you push into the little gaps between tiles on a wall or floor你塗抹進牆壁或地板磁磚之間小縫隙裡的濕拌料。It is它的成分是 sand, water, and cement or lime沙、水，還有水泥或石灰。When it dries乾了以後, it holds the tiles它會固定住磁磚 and stops water sneaking behind them並阻止水滲到磁磚後面。

You can also use it as a verb: you grout the tiles. It is a home-and-building word; you hear it in hardware shops and from people fixing bathrooms, not in school stories. The lines you see between the squares are the grout — they start pale and often go grey if nobody cleans them.

You can also use it as a verb它也可以當動詞用: you grout the tiles你就是在 grout the tiles（填磁磚縫）。It is a home-and-building word這是居家裝修用字; you hear it in hardware shops and from people fixing bathrooms你會在五金行，或修浴室的人口中聽到它, not in school stories而不是在學校課文故事裡。The lines you see between the squares are the grout你看到磁磚之間的那些線就是 grout — they start pale它們一開始是淺色的 and often go grey if nobody cleans them如果沒人清理，常常會變灰。

Though actually, grout is not the glue that sticks the tile to the wall. That glue goes underneath. Grout is only for the gaps.

Though actually不過, grout is not the glue that sticks the tile to the wall grout 不是把磁磚黏到牆上的那種膠。That glue goes underneath那種膠是塗在磁磚底下的。Grout is only for the gaps grout 只負責填縫隙。

Say it like out, not like root.

Say it like out唸起來要像 out, not like root而不是像 root。