A colorless crystalline dicarboxylic acid, C4H6O4, occurring naturally in amber and important in the Krebs cycle. It is also synthesized for use in pharmaceuticals and perfumes.是什么意思_A colorless crystalline dicarboxylic acid, C4H6O4, occurring naturally in amber and important in the Krebs cycle. It is also synthesized for use in pharmaceuticals and perfumes.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句