Pericementum
n. [解]牙周膜
🔁 扩展释义
【医】 牙周膜
🗣️ 情景例句
He is new at the work to the work.
他没有做这项工作的经验。
To scream for his breakfast
想吃早餐而大喊大叫。
Just a minute. I'll see if I'm free. No, I'm not. I've already got something on that evening.
等一会。我看看是否有空。不，我没空。我那天晚上已经有了安排。