Traveling Through a Different World, It's Not Too Much to Bring High Technology.

Xu Huacheng, as a top R&D researcher, is now lying at home in his old age. He glanced at the TV that was still on. It was playing the Chinese Great Country. Smokers solved military expenditures. Xu Huacheng's mouth moved slightly, and he took out a box of cigarettes in his pocket. He opened it and there were two left. He silently took out one and lit it. He took a deep breath of the cigarette, looked up and slowly exhaled it, with bitterness and regret on the corner of his mouth... I didn't expect that the last thing I could do for you was... In a trance, Xu Huacheng saw that there seemed to be another world in the smoke...