Aortic sac
[医] 动脉球囊
🧩 词语组成解析
a. 主动脉的\\n[医] 主动脉的
sac
[sæk]
n. （动植物组织中的）囊，液囊;
abbr. 缩写 = (US) Strategic Air Command 战略空军司令部。;
🗣️ 情景例句
No. It has three bedrooms and three baths.
不。这栋房子有三间卧室、 三间盥洗室。
Not let the grass grow under one's feet.
不失时机。
As the parents had five children, life was a perpetual struggle against poverty.
家里已有5个孩子，全家人常年在贫困中挣扎。