?dust的翻譯是“灰塵”。

用法：

1. 作為名詞，指空氣中懸浮的細小顆粒物，由各種物質(zhì)的碎屑、污垢、花粉等組成。

2. 也可用作動詞，表示除去或清潔灰塵。

例句：

1. The room was filled with dust after the construction work.

施工后，房間里滿是灰塵。

2. She used a feather duster to remove the dust from the shelves.

她用羽毛撣子清除書架上的灰塵。

同義詞及用法：

1. dirt：指污垢、泥土等雜質(zhì)。

2. debris：指碎片、殘渣等。

3. grime：指油垢、污垢等。

4. powder：指細粉末狀物質(zhì)。

5. pollen：指植物花粉。

dust is translated as "灰塵".

Usage:

1. As a noun, it refers to small particles suspended in the air, composed of debris, dirt, pollen and other substances.

2. It can also be used as a verb, meaning to remove or clean dust.

Examples:

1. The room was filled with dust after the construction work.

施工后，房間里滿是灰塵。

2. She used a feather duster to remove the dust from the shelves.

她用羽毛撣子清除書架上的灰塵。

Synonyms and usage:

1. dirt: refers to impurities, mud, etc.

2. debris: refers to fragments, residues, etc.

3. grime: refers to grease, dirt, etc.

4. powder: refers to fine powdered substances.

5. pollen: refers to plant pollen.