适当地接触过敏原将会完善免疫系统。
Moderate exposure [to allergens] will prime the immune system.
味精对我而言是一个主要的过敏原。
你还可以去医院查一下过敏原。
少量的过敏原便可造成的皮肤反应。
A small amount of the allergen can then cause a skin reaction.
另一个常见的过敏原动物怒气。
结论屋尘螨和粉尘螨是北京地区重要过敏原。
Conclusion House dust and flour mites are the most common allergens in Beijing area.
变态反应原，过敏原一种可引起过敏的物质，如花粉。
Transfer of pollen from one plant to another; cross-pollination.
他们这样把小狗带进来说不定会给留下过敏原，造成未来的拜访者过敏呢。
Niklas能够吃任何东西，尽管他父亲怕他接触新的过敏原。
Niklas can eat everything again without his parents being afraid of new allergic reactions.
第二个与另一个乳胶蛋白以及一个橄榄蛋白相似，这两个蛋白也是已知的过敏原；
Another looks like a second latex protein and an olive protein, both known allergens.
但反复长时间暴露在这些过敏原中，你便超越了那个界限，身体便会有所反应。
with repeated exposure over time, you cross that threshold, and your body reacts.
然而有些时候，尤其是当你碰到的是食物里的过敏原的时候，这过程根本就不是循序渐进的。
Sometimes, however (particularly with food allergies), the process is not gradual at all.
然而有些时候，尤其是当你碰到的是食物里的过敏原的时候，这过程根本就不是循序渐进的。
Sometimes, however (particularly with food allergies), the process is not gradual at all.
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