Time flew by, and soon it was the winter of 1992. Lihua was now a third-year graduate student. Over the years, she had been helping out in the laboratory, rising smoothly all the way from her undergraduate studies to her master's degree.
"Lihua, you can go back home for the New Year's holiday this year." Her professor called Lihua into the office and handed her a document. It was a classified document, not a single detail of which could be revealed even to her family.
"That's wonderful! Thank you, Professor." Lihua wore a pair of black-rimmed glasses, her eyes filled with smiles. Ever since she was exempted from the entrance exams for graduate school, she had not had much time to rest, spending most of her time working in the secret base.
Chapter 177