Osteocalcin
骨钙素；骨钙蛋白
🗣️ 情景例句
We all condemn cruelty to children.
我们一般谴责虐待儿童的行为。
Do you like hot weather?
你喜欢热天？
Most of the parents will not be able to pay much money.
多数家长是付不起很多钱的。