allergen

Please check for nut allergens—my son has a severe nut allergy.请检查是否有坚果过敏原——我儿子对坚果严重过敏。

By law, restaurants must clearly label all major allergens on their menus to protect customers with allergies.法律规定，餐厅必须在菜单上清晰标明所有主要过敏原，以保护有过敏体质的顾客。