Calcic gingivitis
[医] 垢性龈炎, 牙石性龈炎
🧩 词语组成解析
a. 钙的, 含钙的\\n[化] 石灰的; 钙的
n. 齿龈炎
🗣️ 情景例句
Look at those funny-looking clowns.
你看那些滑稽的小丑。
Method will teach you to win time.
方法可教会你赢得时间。
A moment later, the Class 4 runner fell and hurt his leg, but he quickly got up and went on running.
过了一会儿，4班的运动员摔倒了，伤了腿，但是他很快爬起来，继续往前跑。