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
John cannot get to the phone right now.
John现在没办法接电话。
She doesn't like anything I do or say.
她不喜欢我做或说的任何东西。
The village no longer existed because it had been submerged, and all the valley too.
村庄已不复存在，因为已经为水所淹，山谷也被水淹没了。