英 [ˈælədʒi]

美 [ˈælɚdʒi]

n. 过敏，反感，厌恶

用法：allergy是一个名词，指的是人体对某种物质或环境的过度反应，通常会导致身体不适或症状。这种反应被称为过敏反应，而引起过敏反应的物质则被称为过敏原。

例句1：She has an allergy to peanuts, so she can't eat anything with peanut in it.

她对花生过敏，所以她不能吃任何含有花生的食物。

例句2：My son has a severe allergy to cats, so we can't have one as a pet.

我儿子对猫有严重的过敏，所以我们不能养宠物猫。

例句3：The doctor prescribed an antihistamine for my seasonal allergies.

医生给我开了一种抗组胺药来治疗我的季节性过敏。

例句4：Some people may develop an allergy to certain medications after repeated use.

一些人在多次使用后可能会对某些药物产生过敏反应。

例句5：It's important for people with allergies to carry an epinephrine auto-injector in case of a severe reaction.

对于有过敏史的人来说，携带肾上腺素自动注射器以防严重反应是很重要的。

同义词及用法：

1. Hypersensitivity (n.) 过敏反应，敏感性

例句：His hypersensitivity to criticism makes it difficult for him to take constructive feedback.

2. Allergic reaction (n.) 过敏反应

例句：She had an allergic reaction to the new laundry detergent and broke out in hives.

3. Sensitivity (n.) 敏感性，过敏

例句：The child's sensitivity to pollen caused him to have constant sneezing and watery eyes.

4. Intolerance (n.) 不耐受，不宽容

例句：Some people have an intolerance to certain foods, causing them to have digestive issues.

编辑总结：

allergy是一个常见的词汇，在医疗和日常生活中都有广泛的应用。了解过敏原和过敏反应对于保护我们的健康非常重要。如果对某种物质或环境有过敏反应，一定要避免接触，并在必要时寻求医疗帮助。