剑桥词典a condition in which the immune system reacts in an extreme way to a substance in the body 过敏 Acute hypersensitivity, resulting in vomiting or diarrhoea , can be a reaction to allergies to foods such as nuts or shellfish . 急性过敏会造成呕吐和腹泻，可能是由于对有些食物如坚果或贝壳类过敏。 返回 hypersensitivity