少年穿坏了很多双鞋，恋人放下了很多双手。 树荫不再青涩，繁花不再多情。 流水一直在流，时光终究让我们一去不回。 穿过层层叠叠的群山与木门， 许飞与刘恋，虽四体不勤五谷不分， 却尚有勇气唱一首十五年前的老歌。 老歌老矣，难敌春风浩荡、人心缠绵， 只是路至半山，月也半弯， 迎难而上的人与落荒而逃的人， 皆值得转身回眸，且说一句：好久不见。 "He undergoes a transformative journey, maturing as navigate through a series of experiences; she also releases and embraces a life of tranquility. The shade of trees is no longer youthful, the blossoms are no longer passionate. The stream keeps flowing, and time eventually takes us away, never to return. Crossing layers upon layers of mountains and wooden doors, Although things have not turned out as we had expected. Fei Xu and Lian Liu still have the courage to sing this old song from fifteen years ago. The old song is indeed old, and it struggles to compete with the vast spring wind and the entangled human hearts. But when the road reaches halfway up the mountain and the moon is also half curved, both the person who faces the difficulties and the person who escapes, deserve a look back and to say: 'Long time no see'."