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This novel describes the rebirth of the times and expresses the dual resonance of the feelings of family and country and the regret of youth. Chen Jian returned to the rural high school in 1992 with half his life wasted. While using his forward-looking vision to lay out semiconductors, break the overseas technology monopoly, and press the technology fast-forward button for the weak motherland, he also wanted to make up for his debt to Niannian and write the unspoken regrets in his youth into a promise that spanned two lifetimes.