allergen

allergen的音标为[ˌæləˈdʒen]，基本翻译为“变应原，过敏原”。速记技巧为：aller（所有）+ gen（生成）→ 产生过敏反应的东西→ 变应原。

allergen的英文词源可以追溯到拉丁语aller, meaning "to go together"或allergen, meaning "something that goes together"或"that tends to cause an allergic reaction"。

allergen的变化形式包括复数形式“allergens”，词性变化时也常被用作名词。

相关单词包括：allergy（过敏反应）、allergic（对…过敏的）、allergen（过敏原）、hypoallergenic（低致敏性的）、allergic reaction（过敏反应）、antihyperallergen（抗过敏剂）、allergenic（引起过敏的）、allergenicity（致敏性）、allergic sensitivity（过敏敏感性）和allergic asthma（过敏性哮喘）。这些单词都与allergen相关，描述了过敏反应和过敏原的各种方面。

常用短语：

1. allergens in food

2. allergen testing

3. allergen avoidance

4. allergen-free diet

5. food allergies

6. allergen exposure

7. allergen-specific immunotherapy

双语句子：

1. 我对海鲜过敏，不能食用任何含有海鲜的食物。

2. 医生建议我对过敏源进行测试，以了解我对哪些食物过敏。

3. 我的孩子对某些食物过敏，我们需要特别注意她的饮食。

4. 这款食品不含任何过敏源，适合所有人食用。

5. 食物过敏可能会影响你的生活质量，需要特别注意。

6. 过敏源特异性免疫治疗可以帮助缓解过敏症状。

英文小作文：

Allergies can be a real challenge for many people, especially when it comes to food allergies. I have a severe allergy to certain foods, which means I have to be very careful about what I eat. I always check the ingredients list before I buy anything and avoid any food that contains the offending ingredients. It can be a hassle, but it"s worth it to avoid an allergic reaction that could be life-threatening.

Fortunately, there are ways to manage allergies, including allergen testing, allergen-free diets, and allergen-specific immunotherapy. These methods can help people like me manage our allergies and live normal lives without the constant worry of an allergic reaction. However, it"s important to remember that allergies are a real medical condition and should be taken seriously by both sufferers and healthcare professionals.