Osteocalcin
骨钙素；骨钙蛋白
🗣️ 情景例句
Why, yes.
当然可以。
It is not polite to eavesdrop on the conversation of other people.
偷听他人说话是很不礼貌的。
A young man sees a sunset and, unable to understand or to express the emotion that it rouses in him,
一个年轻人看到日落，由于无法理解和表达日落在他心中唤起的激情，