Osteocalcin
骨钙素；骨钙蛋白
🗣️ 情景例句
I got dumped by my girlfriend.
我被女朋友甩了。
How long does it take?
火车要开多久？
Bring your babies to Ling Feng. He can take good care of your babies.
把你们的孩子都带来交给凌峰吧，他很会照看小孩的。