Retropulpitis
逆行性牙髓炎
🗣️ 情景例句
Sure, what do you want?
可以啊。什么事
Janet got mad when she heard the false story.
珍妮特听到了虚伪的话，因而大发雷霆。
The children were leaving school on Tuesday when they saw a truck.
星期二，孩子们正放学回家，这时，他们看见一辆卡车。