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
I'm still learning.
我还在学习当中。
He knows enough that can live and hold his peace.
见多识广者沈默寡言。
It is only someone looking on from outside that can inject the dangerous thoughts.
只有外部的旁观者才能灌输危险的思想。