Along the way, someone gets on the train and someone gets off means that interpersonal interactions in life, just like people getting on and off the train, will lose and gain new things. Life is like a train bound for the end. Along the way, some people get on and some get off, but what you can believe is that there will always be someone to accompany you to the end. Life is like traveling. You will meet different people at every stage. Some people will accompany you for a while and then you have to say goodbye. Each of them will move towards different goals. Some people will meet you and get to know each other. We will start a new journey together. A fleeting moment passes, a passing guest is in a hurry, no one will always be by your side, please cherish the ordinary days, say goodbye seriously, and say goodbye with all your strength.