Periapical periodontitis
[医] 根尖牙周炎
🧩 词语组成解析
[医] 根尖周的
[医] 牙周炎
🗣️ 情景例句
More than 50% of marriages are doomed to fall.
50%的婚姻都注定以失败告终。
How often did I tell you to speak clearly?
我告诉你多少次要讲清楚?
Many strange new means of transport have been developed in our century,
本世纪已研制出许多新奇的交通工具，