The disappearance of each unit means the evolution and change of the times. While we miss the past years, we also need to cherish everything in the present, including the convenience and progress we have. Instead of dwelling on nostalgia for the past, it is better to grasp the present and meet the challenges and opportunities of the future.
History is a thick book, and each era has left its unique mark. Those units that have disappeared, they once carried our memories and hopes, but with the development of the times, their roles are constantly changing and adjusting. Just like a flat boat, sailing against the current, if you don't advance, you will retreat. Let us embark on the journey forward with emotion, but also with hope.
There may be more units to disappear on the road ahead, but we don't need to be afraid, because the times are unstoppable. We must learn to adapt to change, face challenges bravely, and unswervingly pursue progress and development. The disappearance of every unit is a page of history, and we are standing in front of a new chapter of the times, let us work hand in hand to write our own legend of the times!