1. What exactly do the four solemn declarations mean? Our party and the people of China solemnly declared to the world with heroic and tenacious struggle: (1) The people of China have stood up, and the era when the Chinese nation was trampled on and bullied is gone forever. (2) The people of China are not only good at destroying the old world, but also good at creating a new one. Only socialism can save China, and only Socialism with Chinese characteristics can develop China. (3) Reform and opening up is a key measure to determine the future and destiny of contemporary China, and China has made great strides to catch up with the times. (4) The Chinese nation has ushered in a great leap from standing up, becoming rich and becoming strong, and the great rejuvenation of the Chinese nation has entered an irreversible historical process. We passed this moment, the majestic national anthem resounded through the square, and the bright five-star red flag Ran Ran rose, wishing the motherland a happy centenary birthday. We were born under the red flag and grew up in the spring breeze. The people have faith, the country has strength, the nation has hope, and China has attracted worldwide attention. Shining with five stars is faith. We are willing to defend the prosperous China with our youth. 3. As China people, how lucky we are, born in China, born in prosperous times, to witness the centenary. Originally, we will always stand on the top of the nation, handed down from generation to generation, and the mountains and rivers will last forever.