Articulationes cotylica
[医] 球窝关节, 杵臼关节
🧩 词语组成解析
[医] 关节
🗣️ 情景例句
Why should you be sorry?
你何必说对不起呢？
Don't make rude remarks about their appearances.
不要口无遮拦，批评他们的外表。
The train was late but nobody knew the reason for the delay.
火车晚点了，但没人知道为什么。