vitamin-b9

vitamin-b9什么意思,vitamin-b9翻译

例句

• Vitamin B9, usually called folic acid, has long been known to reduce the risk of spinal birth defects.

  （自然杂志消息）维他命B9，一般被称为叶酸，长期以来科学家都认为它能降低脊柱出生缺陷危险。