You could paint the walls and ceilings the same colour so they blend together.

你可以把这些墙和天花板漆成相同的颜色，这样它们就浑然一体。

《柯林斯英汉双解大词典》

Paint was peeling off the walls.

墙上的漆正在剥落。

《柯林斯英汉双解大词典》

I'm going to paint the walls white and the ceiling pink.

我打算把墙壁刷成白色，把天花板刷成粉红色。

《牛津词典》

That includes tables, chairs, carpets, kitchen equipment and paint for the walls--but not property costs.

FORBES: Magazine Article

She minimized paint (using plaster walls inside, stone outside and steel-clad windows) so as to avoid retouching work.

WSJ: In Napa, Kelly Fleming Blends House and Winery

One reason for Sherwin's success: In a classic tort case--this defendant injured that plaintiff--it's very difficult to prove whose paint is on the walls of an old house.

FORBES: Chip Thrills