1．食品安全问题 2．共食买回食品 3．中毒、肚子痛
4．送医院治疗 5．脱险 6．全社会重视食品安全
I'm writing to tell you something about the problem of food safety.
A couple of days ago，one of my classmates bought a bag of food from a supermarket. Some roommates were invited to enjoy the food. Unfortunately，after finishing it，all of them got poisoned and had stomachaches with their faces pale. They were quickly sent to a nearby hospital. A doctor examined them and gave them some medicine. They were out of danger soon after taking the medicine.
This accident made me realize the seriousness of the food safety problem. I sincerely hope that the whole society pay much more attention to food safety.