We are ups and downs in the uninterrupted long river of time, ups and downs in the torrent of reality, and only occasionally come up to take a breath, look back on the past, and mourn ourselves; growth is just a floating leaf, no matter how many twists and turns along the way, it will eventually fall into mud, and we don't know the secret fragrance, but we remain the same; sadness, listening to the rain on the boat, joy, monopolizing the waves, lying drunk on the battlefield, relying on each other, communicating with each other through tears.