Parodontid
[医] 龈瘤
🗣️ 情景例句
You should use 'officer' to address a policeman.
你应该用 'officer' 来称呼警察。
Half a loaf is better than no bread.
半片面包总比没有好；有胜于无。
What's up? What's up? someone called.
“什么事？什么事？”有人叫着。