一种由于缺少维生素c引起的疾病，症状为多孔的和爱流血的牙床，皮下出血和极度虚弱。

A disease caused by deficiency of vitamin c, characterized by spongy and bleeding gums, bleeding under the skin, and extreme weakness.

youdao

催产素可以减少产后流血，而产后出血占到了孕产妇死亡原因的25%。

Oxytocin reduces the bleeding that causes twenty-five percent of all maternal deaths. The powder would be used in a spray that the mother could inhale into her lungs.

youdao

催产素可以减少产后流血，而产后出血占到了孕产妇死亡原因的25%。

Oxytocin reduces the bleeding that causes twenty-five percent of all maternal deaths. The powder would be used in a spray that the mother could inhale into her lungs.

youdao