bleeding gums

基本解释

I have bleeding gums.
我的牙齦出血。
A disease caused by deficiency of vitamin C, characterized by spongy and bleeding gums, bleeding under the skin, and extreme weakness.
一種由於缺少維生素C引起的疾病，症狀爲多孔的和愛流血的牙牀，皮下出血和極度虛弱。
odict.net
Periodontal disease manifested as gingival inflammation, gingival ulcers, gingival necrosis and loosening of teeth, bleeding gums and emerging symptoms such as pain and malignant transformation.
牙周病表現爲牙齦發炎、牙齦潰瘍、牙齦壞死以及牙齒松動，竝可出現牙齦出血疼痛和惡變等症狀。

Cambara remembers his gums bleeding prolifically and receding wastefully at a phenomenal rate, the inflammation, combined with the irritation on account of the tartar deposits, causing the loosening of several of his teeth.
NPR: Somalia's Farah: Humanizing a Broken Place
And the laser cuts gums without causing much bleeding.
FORBES: A Painless Root Canal?
The sailor was dirty and salty, but he wasn't hungry, and thanks to all the lime juice he'd drunk his gums weren't bleeding, his hair was still rooted, his breath wasn't as foul as it might be, and his lips were pinker than black.
NPR: Excerpt: 'Natives and Exotics'