This is another idea that I don't know if I can fill it in, and it's also a very short idea = =
There is never a dotted line that can be turned around on the long road of life. The scenery you pass by and stop to see are all unchangeable memories. These memories may be long or short, or continue or stop.
Zhang Hu saw short but unforgettable scenery on the road of life.
Intention: The main expression is that some feelings are phased, and there are always regrets in life.