Lan Jie looked at the message and couldn't help but laugh. But then again, this seems to be the normal human response.
After all, even people who don't know much about mathematics know the status of Mr. Tian in the Huaxia mathematics community, not to mention within the Huaxia education system.
Just as he was about to continue explaining on WeChat, a video message came directly from the other side.
Alright, no need for him to explain then. Lan Jie casually clicked to accept.
Soon, the video connected, and Zhang Tiejun's face appeared on the phone screen. He wasn't in the office, but in a car. It was unclear whether he was heading to a meeting or on the way back to school after a meeting.
"Oh? Is it really you? Teacher Lan, is what you said on WeChat just now true?"
