The work tells us that the teacher received an express, which contained a ticket to the archives. The students got on the bus to the red tour. We walked into the archives together. I opened a thick archive book, it records the red story from the founding of New China in 1949-the production cooperative in 1953-the successful atomic bomb explosion in 1964-the launch of Dongfanghong Satellite in 1970-the return of Hong Kong and Macao in 1997 and 1999-the launch of Shenzhou 1 in 1999-the operation of China's first high-speed railway in 2008-the launch of Jiaolong in 2009-the launch of Liaoning in 2012-the opening of Hong Kong-Zhuhai-Macao Bridge in 2018.