Scientists are also looking at profiting from the leftovers from the production of corn ethanol and cellulosic ethanol, made from materials like switch grass, corn husks and prairie grass.是什么意思_Scientists are also looking at profiting from the leftovers from the production of corn ethanol and cellulosic ethanol, made from materials like switch grass, corn husks and prairie grass.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句