C313 Unwillingness

"I'm sorry to bother you, Doctor." Zhang Xin said in a low voice.

"You know to bother me too, but what time is it now that you don't know?" Dr. Liu shouted hoarsely from the other side of the phone.

Zhang Xin shrunk his neck and explained: "I did not notice the time because I had an important question to ask you."

The Dr. Liu didn't say anything else and only threatened him