檸檬酸 níngméngsuān citric acid Origin Definitions Defs Strokes Stroke Words Sentences Sents 柠檬酸循环 níngméngsuānxúnhuán citric acid cycle citric acid cycle; also known as the Krebs cycle or the tricarboxylic acid cycle柠檬酸盐 níngméngsuānyán citrate a salt or ester of citric acid