Protheca
[动]前鞘
🗣️ 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' 。
I guess he's about 30.
我猜他大概30岁。
We'll have to talk it over some more.
这个我们还得再谈一谈。