adjective🔗Share石炭紀の、炭素を含むContaining or producing carbon."The Carboniferous period was a time when vast forests grew, producing enormous amounts of carbon-rich deposits. "石炭紀は、広大な森林が成長し、莫大な量の炭素を多く含む堆積物を生成した時代でした。materialsubstancechemistrygeologyenvironmentChat with AIVocabulary GamePractice Reading
