Pma.
[医] 龈炎发病率(P为乳头,M为龈缘,A为龈附丽)
🗣️ 情景例句
I'm in Shanghai looking for possible suppliers.
我此次来上海是想寻找可能合作的供应商。
Little strokes fell great oaks.
水滴石穿。
He resolved to give up smoking.
他决心戒烟。