C64 Calm down and Improve the Business

Even though Jianjun Cheng admitted that he had made a mistake this time, he was still misunderstood and embarrassed, so he had to find a place to vent his feelings.

Cheng Jianjun came to the Shanghai railway engineer workshop. It was already 5 PM. Although many engineers were handing over their duties, he still wanted to follow these engineers to understand. The blueprint just now