The acoustic isolation of headphones tends to highlight this dulling effect.

耳机的隔音效果会使得这种现象更加明显。

Using the wrong wheel cleaner can lead to discoloring, dulling, and permanent staining.

使用错误的清洗液，轮胎可能褪色、裂、渍永远不能清洗掉。

Described the application and the present state of the research for the dulling material.

叙述了消光材料的应用和研究现状及存在的问题。

The music was dull, or at least had a dulling effect on me - it didn't sparkle, or ask questions.

音乐单调乏味，起码对我是如此。没有火花，也没有疑问。

The same risk holds today, particularly if the fiscal squeeze involves incentive-dulling tax increases.

同样的风险如今依旧存在，尤其当财政紧缩手段包括了动机不明的增税时更是如此。