Gingiva propria
[医] 龈本部
🧩 词语组成解析
n. 齿龈
固有层
🗣️ 情景例句
Should be.
应该是开的。
I'd like a refund.
我要想退款。
The spheres had been magnetized and attracted or repelled each other all the time.
金属球经过磁化，互相之间不停地相互吸引或相互排斥。