Palfyn's sinus
[医] 帕耳芬氏窦, 筛窦额窦间隙
🧩 词语组成解析
n. 窦, 静脉窦, 凹陷处
🗣️ 情景例句
Someone just checked out.
有一个人刚刚结帐走了。
He's concentrating on learning English.
他集中精力学英语。
He did everything very slowly.
他做什么都很慢。