This photo captures a moment of a man sitting by the red train door as the train moves. The red door clearly shows the yellow number '3', and the open door reveals blurred green vegetation outside, creating a dynamic travel atmosphere. The man, facing away from the camera, wears a gray T-shirt, jeans, and a dark hat, with a relaxed posture as if enjoying the scenery outside. Taken by photographer Zhang Qianli, this work is part of the 2010 National Geographic China Photography Contest, showcasing a moment of tranquility and the blend of travel and nature through a realistic style, recording the poetic moments in daily scenes and conveying the quiet solitude of travel and the perception of nature.