The fumarate ion participates in several important metabolic pathways, e.g. the Krebs cycle, purine pathways, and the urea cycle.是什么意思_The fumarate ion participates in several important metabolic pathways, e.g. the Krebs cycle, purine pathways, and the urea cycle.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句