dindexdurain./door-eyn, dyoor-/US // ˈdʊər eɪn, ˈdyʊər- //杜兰恩,杜兰特,杜兰,杜兰姆Definitionsn.noun · 名词1. Mineralogy.›the coal forming the dull layers in banded bituminous coal.Level 2More words in d →