noun🔗Share煤烟, 烟灰 Fine black or dull brown particles of amorphous carbon and tar, produced by the incomplete combustion of coal, oil etc."The fireplace left a layer of soot on the bricks around it. "壁炉在周围的砖头上留下了一层煤灰.substancematerialenvironmentindustryfuelchemistryChat with AIVocabulary GamePractice Reading
verb🔗Share使沾满煤烟，用煤烟覆盖 To cover or dress with soot."to soot land"用煤烟覆盖土地materialsubstanceenvironmentChat with AIVocabulary GamePractice Reading
