The description of human laughter in four classical novels

Grandma Jia said "please" here, and Grandma Liu stood up and said loudly, "Lao Liu, Lao Liu, you eat like a cow, and you don't look up after eating an old sow." I drummed my cheeks and said nothing. They were stunned at first, and then they burst out laughing up and down. Shi Xiangyun couldn't stay up and spit out a mouthful of rice; Lin Daiyu was angry with a smile and fell on the table. Baoyu rolled into the old lady's arms early, and the old lady smiled and hugged Baoyu, calling him "sweetheart"; Mrs. Wang smiled and pointed at Xifeng, unable to speak. Aunt Xue couldn't hold on, and the tea in her mouth sprayed on Tanchun's skirt. Tanchun's rice bowls are all on Yingchun; Cherish the spring got up from his seat, pulling his nurse called rub intestines. There is no one in the ground who doesn't hunch over. Some hide out and squat and laugh, and some endure laughter to change clothes for their sisters. Only when-Feng and Yuanyang hold on, can Granny Liu go down. A Dream in Red Mansions