Os pisiforme
[医]豌豆骨：腕骨近排内侧的骨
🧩 词语组成解析
n. 骨, 孔, 穴裂口\\n[计] 办公系统, 操作系统
🗣️ 情景例句
What's the meaning of NATO?
NATO代表什么？
To be of use in the world is the only way to be happy.
为善最乐。
What a coincidence!
真是太巧了。