On April 21st, Beijing Evening News published a poem "Curse the sparrow" written by Guo Moruo: "Sparrow Sparrow is too angry, you don't care if the sky falls. Sparrows are so angry that they eat rice like the wind. Sparrows are so angry that they just steal lazy and have nothing to do. Sparrows are too arrogant, afraid of both red and noisy. Sparrows are too charming, but they can't fly high with wings. You are such an asshole bird, jumping around with all your breath. I have committed crimes for thousands of years, and I will settle with you today. Beat and attack, and finally make the fire dry. Burn it together with weapons, and the four evils are lawless, the same below.