noun 下载 🔗分享 煤烟, 烟灰 Fine black or dull brown particles of amorphous carbon and tar, produced by the incomplete combustion of coal, oil etc. Examples : "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. substance material environment industry fuel chemistry 与AI对话词汇游戏阅读练习
verb 下载 🔗分享 使沾满煤烟,用煤烟覆盖 To cover or dress with soot. Examples : "to soot land" 用煤烟覆盖土地 material substance environment 与AI对话词汇游戏阅读练习