Pericementum
n. [解]牙周膜
🔁 扩展释义
【医】 牙周膜
🗣️ 情景例句
He had a great capacity for learning.
他的学习能力很强。
I could have enjoyed the party twice as much.
将会更尽兴。
I'm going to hear John Denver.
我要去听约翰·丹弗的演唱。