Ayou goes to middle school. One day at noon, Ayou was not very hungry, so he wrote his composition homework. Ayou found a bottle of juice in the dormitory during lunch break and drank it. But when I was going to physical education class in the afternoon, Ayou felt the abdominal pain unbearable, so she went to ask for leave from Teacher Yu. Teacher Yu knew that Ayou didn't fall in love with physical education class and scolded Ayou for pretending to be ill. In class, Ayou fell on the desk. Her best friend Tao picked Ayou up, picked Ayou up and ran to the infirmary. Tao picked up Ayou and let Ayou lie down. Teacher Zhang opened Ayou's school uniform and heard: "She ate something out of date." Atao picked up Ayou and ran to the dormitory. Unfortunately, Ayou's medicine is also expired, which has great side effects. Ayou has unbearable abdominal pain. Half an hour later, Atao said in surprise that "the production date of painkillers was June 30th, 2000", which frightened Atao. The angry PE teacher refused to ask for leave and scolded Atao. The second class in the afternoon is a math class given by the gentle teacher Yang. Seeing Ayou's pale face, Teacher Yang asked Atao, "Atao, is Ayou unwell?" A You, who resisted abdominal pain, said "nothing", but Teacher Yang still called 120. After going to the hospital, I found that Ayou's drink contained grapefruit that would make Ayou allergic, and she ate expired medicine, so she had abdominal pain. After that, Ayou was hospitalized for one month, and Mr. Yu was expelled from the principal.