```
"Oh, Liwei is leaving already?"
"Yes, Madam, Professor has already finished discussing the topic with me."
"Oh, then be careful on the road."
"Okay, thank you, Madam."
Listening to the polite conversation coming from the living room, followed by the sound of a door closing, Zhao Guangyao sighed in his heart.
However, he did not get up, but sat in his study and started to reread the annotations that Qiao Ze had made on Zhang Liwei's paper.
After finishing, he fell into deep thought, then stood up and began to pace around his solid wood desk in the study.
About ten minutes later, Zhao Guangyao made up his mind. He sat back at the desk, then picked up his phone and began to take photos of the paper until he had photographed all of the more than ten pages. Only then did he open WeChat and sent the entire draft of the paper over.
Afterward, he exited WeChat and made a phone call.
"Professor Zhang, this is Zhao Guangyao from Westwood University of Technology. Are you busy?"