Bursae
n. 囊, 粘液囊( bursa的名词复数 ); [医]（单bursa）囊, 粘液囊
🗣️ 情景例句
Remember catching your first fish?
还记得你第一次钓到鱼的情形吗？
Do you often study history on Saturday?
你常常在星期六学历史吗？
All right. Just for a minute. I came to give you a message.
好！稍等一会儿。我来给你捎个口信。