Metacarpal bone
掌骨
🧩 词语组成解析
a. 掌的\\nn. 掌骨
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
All you do is
你所要做的就是
Do not speak of your happiness to one less fortunate than yourself.
不要向不如你幸运的人述说你的幸福。
What happened before printing was invented?
印刷术发明以前是怎么一回事？