Dentinitis
[医] 牙[本]质小管炎
🗣️ 情景例句
It's not an important game, anyway.
话说回来， 这场比赛不重要。
A lazy youth, a lousy age.
少壮不努力，老大徒伤悲。
New China was founded in l949.
1949年新中国成立。