Os trapezium
[医]大多角骨：腕骨远排中最外侧的骨
🧩 词语组成解析
n. 骨, 孔, 穴裂口\\n[计] 办公系统, 操作系统
trapezium
[trə'pi:zjəm, -ziəm]
n. 梯形，<美>不规则四边形;
🗣️ 情景例句
They had a special on frozen fish down at the supermarket.
超级市场 冷冻鱼特价。
Do you have any hobbies?
你有什么爱好吗？
He is now satisfied merely to try to stand up, but as soon as he does so a porpoise knocks him flat.
此时的海龟，只要能站起来就满足了，但它刚站起来，就被一只海豚击倒。