I eager to make sense about the reason behind their tears, do they remember something, or blame something or something hurts their hearts, or they are just releasing, or there are nothings at all.

• 他们不会互相交流，我相信他们的不言语不是因为列车的缘故，这是他们的过去并且这是他们的故事，也亦是他们的历史。