dust
[NOUN, VERB]
1. [U 不可数名词] 尘土 , 沙尘
Dust is very small dry particles of earth or sand.
双语例句
例：Tanks raise huge trails of dust when they move.
坦克开动时掀起滚滚的尘土。
2. [U 不可数名词] 灰尘
Dust is the very small pieces of dirt which you find inside buildings, for example on furniture, floors, or lights.
双语例句
例：I could see a thick layer of dust on the stairs.
我能看见楼梯上厚厚的一层灰尘。
3. [U 不可数名词] 粉末
Dust is a fine powder which consists of very small particles of a substance such as gold, wood, or coal.
双语例句
例：The air is so black with diesel fumes and coal dust, I can barely see.
空气中由于充满柴油机的浓烟和煤灰而变得黑乎乎的，我几乎什么也看不见。
NOUN. 名词
bite the dust
1. 不复存在 , 失败
If you say that something has bitten the dust, you are emphasizing that it no longer exists or that it has failed.
双语例句
例：In the last 30 years many cherished values have bitten the dust.
30年来，许多人曾甚为看重的价值观已经不复存在。
when the dust settles
1. 纷扰平息 , 尘埃落定
If you say that something will happen when the dust settles, you mean that a situation will be clearer after it has calmed down. If you let the dust settle before doing something, you let a situation calm down before you try to do anything else.
双语例句
例：Once the dust had settled Beck defended his decision.
一旦事态明朗，贝克就为自己的决定进行了辩护。
gather dust
1. 闲置
If you say that something is gathering dust, you mean that it has been left somewhere and nobody is using it or doing anything with it.
双语例句
例：Many of the machines are gathering dust in basements.
很多的机器闲置在地下室里。
PHRASE. 习语
dusts , dusting , dusted
1. [I 不及物动词] 去除灰尘
When you dust something such as furniture, you remove dust from it, usually using a cloth.
双语例句
例：I vacuumed and dusted and polished the living room.
我用吸尘器清扫了客厅，又擦去灰尘，使之焕然一新。
2. [I 不及物动词] 用（粉状物）擦涂 , 把（粉状物）撒于
If you dust something with a fine substance such as powder or if you dust a fine substance onto something, you cover it lightly with that substance.
双语例句
例：Lightly dust the fish with flour.
轻轻地把面粉撒在鱼上。
VERB. 动词
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