Formalised
使成为正式
🗣️ 情景例句
You do. You do. There's a book here.
当然 ，当然。书要出版。
It doesn't matter to me.
两个都可以。
I say, let's go out for a drive next Sunday.
我说，咱们下星期天开车出去兜兜风吧。