“煤灰”的拼音为：méi huī...

马修擦掉了脸上的煤灰。Matthew scrubbed the coal dust from his face.他们满脸煤灰。Their faces were blackened with soot.他的脸和双手都沾满了煤灰和污垢.His face and hands were coverd with grime from the coal dust....

“煤灰”的英语可以翻译为：coom，coal ash，coal ash and slag ...