Osteocalcin
骨钙素；骨钙蛋白
🗣️ 情景例句
He has to drive for twenty minutes to get from his house to his office.
从他的家到他的办公室有20分钟的车程。
We're afraid that your product's quality won't satisfy Chinese customers.
恐怕你们的产品质量无法使中国顾客满意。
We were, however, worried about our nearest neighbors, whose farm was low lying and who were newcomers to the district.
不过，我们很为我们的近邻担心。他们的农场地势低洼，而且他们又新来乍到。