Aortic knob
[医] 主动脉球, 主动脉结
🧩 词语组成解析
a. 主动脉的\\n[医] 主动脉的
knob
[nɑb]
n. 球形把手;（收音机等的）旋钮;小块;疙瘩;
v. 鼓起;使有球形突出物;给（门等）装球形把手;
🗣️ 情景例句
Was it serious?
病得很重吗？
One foe is too many; and a hundred friends too few.
朋友成百犹觉少，仇敌一人已嫌多。
But why did white people want to catch Africans and put them in chains?
但是为什么白人要把非洲人抓起来，戴上镣铐呢？