The book was so dull that I didn't finish it. 這本書太枯燥了，我沒有看完。
Shiny art-paper as opposed to matt art or coated cartridge which have a dull finish . 有光澤的紙，與啞光粉紙或塗麪畫紙有別；它們的表麪暗晦。
Dirt, grime, and other bonded contaminants on the surface of a car's paint absorb and diffuse light, reducing gloss, and making the finish look dull and lifeless. 表麪上的灰塵、濁和其它汙染物可以吸收和漫射光源，降低它的光澤度，使漆麪看起來不吸引人。