Gingiva propria
[医] 龈本部
🧩 词语组成解析
n. 齿龈
固有层
🗣️ 情景例句
and lay them face down.
将牌盖住。
She gives me a headache.
她让我头疼。
Its wool, which had been dyed black, had been washed clean by the rain!
原来羊毛上染的黑色被雨水冲掉了！