Petit's sinuses
[医] 波替氏窦, 主动脉窦
🧩 词语组成解析
湾, 穴, 窦, 窦房结, 窦道, 鼻窦, 瘘, 瘘管
🗣️ 情景例句
A community center
一个社区中心
The evils we bring on ourselves are the hardest to bear.
自作孽不可活。
It's between the post office and the hospital.
它就在邮电局和医院之间。