dust

• 名词，指细小的干燥颗粒状物质，如灰尘、尘土、花粉等微小固体颗粒，常积聚在物体表面或漂浮在空气中；也可泛指粉末或细末。

A noun referring to fine, dry particles of matter, such as dirt, pollen, or other small solid particles, often found on surfaces or in the air.

不可数

1. Fine particlesA1formal

   Fine, dry particles of matter, such as dirt, pollen, or other small substances, that settle on surfaces.

   灰尘

   • The table was covered in a thin layer of dust.
   • She wiped the dust off the shelves with a cloth.
   • Dust particles floated in the sunlight coming through the window.

   同义词ashdirtgrimegritpowdersmutsoot

2. Remains or debrisB2formal

   The remains of something that has been destroyed or broken down, often used metaphorically.

   残骸

   • The old building had crumbled to dust over the centuries.
   • After the explosion, only dust and rubble remained.
   • The ancient manuscript turned to dust in his hands.

   同义词debrisdetritusremainsrubblewreckage

• 动词，表示去除表面灰尘的动作，也指把粉末或细小颗粒撒在物体上。

A verb used to indicate the act of removing dust from a surface, or to sprinkle something with a fine powder or substance.

1. A2formal

   To remove dust from a surface by wiping or brushing.

   掸尘

   • She dusted the shelves every morning.
   • He dusted the furniture with a soft cloth.
   • Please dust the books before putting them back.

   同义词brushcleansweepwipe

2. Sprinkle lightlyB1formal

   To cover something with a fine powder or small particles.

   撒

   • She dusted the cake with powdered sugar.
   • The chef dusted the dish with fresh herbs.
   • He dusted the plants with insecticide.

   同义词coverdredgeflourpowdersprinkle