Bursae
n. 囊, 粘液囊( bursa的名词复数 ); [医]（单bursa）囊, 粘液囊
🗣️ 情景例句
I see. Would you like me to reschedule you for another night?
我明白了。要不要另外为你安排别的晚上。
There is no general rule without some exception.
普遍规律必有例外。
When will the train leave?
火车什么时候开？