Osteocalcin
骨钙素；骨钙蛋白
🗣️ 情景例句
You pay there. I have the next group to go down. I'll see you soon then.
你在那儿付钱。我带的下一个团就是要下去的。回见！
How can I get in touch with you?
我要怎样联络你呢？
Which would you like, a cup of tea or a glass of milk?
你想来点什么，一杯茶还是一杯牛奶？