Periodontal recession
[医] 牙周退缩
🧩 词语组成解析
a. 牙齿周围的, 齿根膜的, 牙周病学的\\n[医] 牙周的, 牙周膜的
🗣️ 情景例句
That's exciting, Harry. What was it?
太令人兴奋了， Harry。是什么样的工作？
I will come back with him if he asks me.
我会和他走回来，假如他要求我的话。
What invariably happens is that a great number of things choose to go wrong at precisely the same moment.
情况经常是这样的，许许多多的事情都偏偏赶在同一时刻出问题，