Crista arcuata
[医] 弓形嵴(杓状软骨)
🧩 词语组成解析
n. [解][动]羽冠, 脊
🗣️ 情景例句
Do you know when the bus for the Summer Palace leave?
你知道到颐和园的车几点开吗？
One never loses anything by politeness.
有礼貌对自己不会吃亏。
No, they aren't.
不，不是。