C375 The descendency of ancient and modern times

Yun Zihuang looked at Ouyang Baofeng in amusement: "You said that the letter Father gave me was not even an envelope?"

Ouyang Baofeng nodded in silence.

"I agree with your first analysis, the letter was sent along with the recital, I disagree with your second analysis, the letter does not have an envelope."

"Someone, come." He raised his voice