外寇;
Well basically, once a mosquito bites you, it leaves behind its saliva which your body recognizes as a foreign substance. So, in response, your body's immune system produces antibodies to fight the invader, which results in the release of histamine ( the compound that makes things itch and swell).
其实一旦你被蚊子咬了,留在你体内的蚊子唾液就会被你的身体视为异物,所以为了对抗异物,你身体的免疫系统会产生抗体来对抗入侵者,释放组胺(这种化合物会使皮肤发痒肿胀)。
英语网 · 英语词汇
英语网 · 双语娱乐资讯
英语网 · 英语阅读
英语网 · 双语新闻