Maxillary sinus
海默尔氏窦，上颌骨窦
🧩 词语组成解析
a. 颌的, 上颌骨的\\nn. 上颌骨
n. 窦, 静脉窦, 凹陷处
🗣️ 情景例句
Thank you everyone. Thank you very much.
谢谢大家，非常感谢你们！
Many a little makes a mickle.
积少便成多。
No,you mustn't eat anything until you see the doctor.
不行，看医生之前你不可以吃任何东西。