Peridentitis
[醫(yī)] 牙周炎
??? 情景例句
I'm glad to have met you.
非常高興認(rèn)識(shí)你。
Many new ideas are discovered during college years.
大部分嶄新的觀念都產(chǎn)生于大學(xué)時(shí)代。
The New Year is a time for resolutions.
新年是下決心的時(shí)候，