allergization

例句：

1. 1. Allergens are substances that can cause an allergic reaction in sensitive individuals.
   过敏原是那些能引起敏感个体过敏反应的物质。
2. 2. The doctor advised her to avoid foods that might cause her allergies.
   医生建议她避免可能引起她过敏的食物。
3. 3. Hypersensitivity is a type of allergy that occurs when the immune system overreacts to aforeign substance.
   超敏反应是一种过敏类型，当免疫系统对异物过度反应时发生。