Bursa
n. 囊, 黏液囊\\n[医] 囊, 粘液囊, 伞(昆虫)
🗣️ 情景例句
That's all right. We don't go to bed early.
那没关系。我们不会睡得太早。
A change of work is as good as a rest.
调换一下工作是很好的休息。
How many instruments do you play?
你能演奏多少种乐器？