soot
1
煤烟, 烟灰
a black powdery substance produced by burning materials like wood or coal
- The old fireplace emitted a cloud of soot, leaving dark stains on the surrounding walls.
旧壁炉喷出一团煤烟，在周围的墙壁上留下了黑色的污渍。
- The chimney sweep removed layers of soot to improve the fireplace's efficiency and reduce the risk of a chimney fire.
烟囱清扫工清除了煤烟层，以提高壁炉的效率并降低烟囱火灾的风险。
- Heavy traffic in urban areas can contribute to elevated levels of soot in the air, affecting air quality.
城市地区的交通拥堵可能导致空气中煤烟水平升高，影响空气质量。
- Firefighters emerged from the burning building covered in soot after extinguishing the blaze.
消防员在扑灭大火后，从燃烧的建筑物中出来，身上覆盖着煤烟。
- Historic buildings may undergo periodic cleaning to remove accumulated soot from their facades.
历史建筑可能会进行定期清洁，以清除其外立面累积的煤烟。