Replacement bone
[医] 软骨成骨
🧩 词语组成解析
bone
[bon]
n. 骨头;尸骨;骨质物;有…样的骨头的;
vt. 挑鱼刺，剔骨头;剔去…的骨;
vi. 苦学;专心致志;
🗣️ 情景例句
It's been a pleasure to talk to you.
和你谈话是件很愉快的事。
That's my business.
那是我的事情。
But wouldn't you like to spend an extra day or two here?
你们不愿意在北京多待一天吗？