dust
/dəst/
fine powdery material such as dry earth or pollen that can be blown about in the air
中文释义:灰尘;尘土
A thick layer of dust covered the old furniture in the abandoned house.
一层厚厚的灰尘覆盖了废弃房屋里的旧家具。
The spacecraft collected samples of lunar dust to analyze its composition.
航天器收集了月球尘埃样本以分析其成分。