C813 He Is Not Sick

"You are not allowed to be rude to Mr. Zhang!" The old man frowned as he reprimanded Zhang Xiaolong. He turned around and said to Zhang Xiaolong, "Sorry Mr. Zhang, I have made you laugh."

"He's not wrong. I am not a doctor. Even if I know a little bit about medicine, I rarely see patients. I can't prove anything just because of a few words from him." Zhang Xiaolong was not angry.

In his opinion