Antrotympanitis
[医] 鼓室窦炎, 鼓窦鼓室炎
🗣️ 情景例句
If you don't know a person's last name, use 'ma'am' or 'sir'.
如果你不知道一人的姓， 你应称呼他为 'ma'am' 或 'sir' 。
It can't be helped.
没办法了。
Sorry! she said to the shopkeeper. I've forgotten my money!
“对不起！”她对售货员说，“我忘记带钱了！”