dust的形容词形式是dusty;
dusty:adj.布满灰尘的;灰尘覆盖的;土灰色的;灰暗的
They started strolling down the dusty road in the moonlight.
在月光下他们开始沿着满是尘土的路漫步。
The car pulled up too fast and skidded on the dusty shoulder of the road
由于刹车太急,车子侧滑到了满是尘土的路肩上。
The books looked faded, dusty and unused.
那些书看上去褪了色,尘封已久。