How did China demonstrate the spirit of the "Big Four" in the fight against the COVID-19 epidemic? (v 1)

In this life-and-death contest with a serious epidemic, the people of China and the Chinese nation, with the dauntless spirit of daring to struggle and win, have forged a great anti-epidemic spirit of life first, unity of mind, giving up one's life and forgetting one's death, respecting science and sharing common destiny. The great anti-epidemic spirit, the anti-epidemic spirit formed in the fight against COVID-19, and the endless spirit of the Chinese nation have demonstrated and further tempered the great spirit of the Chinese nation in the new era.