Are your gums bleeding?

你的牙龈正在流血吗？

youdao

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

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。

youdao

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

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。

youdao