This coming 18^th of September is Railroad Day. It is the day to promote the meaning of the railroad industry, and appreciate railroad men’s labor and service. Last, May 22, the number of people to take a subway exceeded 30 billion. The subway, which is a kind of railroad, is important for the transportation of citizens. The railroad employees work for us, so that we have a railroad that is comfortable and safe though they are never seen and work in hidden places. What do you think about their labor and service, when you use a railroad?