When did Mu Dan join the textbook?

20 14. According to official website, People's Education Press, Mu Dan joined the textbook 20 14. Mu Dan (19 18 to 1977), formerly known as Cha, is a famous poet and translator. He studied in Tsinghua University and the Foreign Languages Department of National Southwest Associated University, joined the Chinese Expeditionary Force Myanmar Anti-Japanese Combat Force, stayed in the United States in the late 1940s, and taught at Nankai University after returning home. Because of his previous political movements, his life was very difficult.