Calcitar
降钙素
🗣️ 情景例句
My mistake. it won't happen again.
是我的错。 不会再发生类似的事情了。
He apologized for having offended her visitors.
他因为冒犯她的客人而向她道歉。
What's the matter with him, doctor?
他得了什么病，医生？