灰尘的英文：
dust

A speck of dust
一点灰尘

A fine layer of dust covers everything.
所有的东西都盖了一层薄薄的灰尘。

The desk,the bookcases, and the typewriter were deep in dust, but we finally managed to make the room spotless
写字台上，书架上，还有打字机上都布满了一层厚厚的灰尘，最后我们把书房收拾得一尘不染。

He waited by the counter, inhaling the keen reek of drugs, the dusty dry smell of sponges and loofahs
他在柜台跟前等待着，慢慢地嗅着药品那冲鼻子的气味以及海绵和丝瓜瓤那满是灰尘的干燥气味。

She dusts every day.
她每天掸灰尘。

to flip a speck of dust off
把一点灰尘掸掉

wipe off dirt;wipe away grease.
擦去灰尘;抹去油脂

The bookshelves were coated in dust. ; The bookshelves were coated with dust
书架上积了一层灰尘。

The dust has been swept away.
已把灰尘清除干净了。

Dust grimed his face.
灰尘弄脏了他的脸。

dusted the cookies with sugar;dust crops with fertilizer.
将饼撒上糖粉；把化肥撒在作物上

Dust sugar on to a cake.
将糖撒在糕点上。

The carriage left a trail of dust.
马车后扬起了一缕烟尘。

He dusted his trousers.
他掸掉裤子上的尘土。

She dusts every day.
她每天掸灰尘。