Bursae
n. 囊, 粘液囊( bursa的名词复数 ); [医]（单bursa）囊, 粘液囊
🗣️ 情景例句
Good morning, sir. May I help you?
早安，先生。能为您服务吗？
Her social life got in the way of her studies.
她的社交活动妨碍了自己学业。
The officers got out and the prisoner stood to attention and saluted as they passed.
军官们下了车，战俘立正站好，并在他们从他面前经过时敬了礼。