On May 30th, before the departure of train K27 at Beijing Station, passengers took a group photo at the platform. The predecessor of the K27/28 train from Beijing to Dandong was the 1/2 train from Beijing to Shenyang, which was opened in 1950; On May 21, 1954, the train extended from Beijing to Andong (now Dandong) with train numbers 13/14. On June 3 of the same year, the train began to shoulder the task of international intermodal transportation between China and North Korea; On June 11, 1959, the train number for train 13/14 was changed to train 27/28; On October 11, 1981, train 27/28 was changed to K27/28. Up to now, the train has been in operation for 70 years. (Lai Xin She)