这就是所谓的过敏性反应和可能发生几分钟内，以小时暴露的实质该人是过敏。
This is called anaphylaxis and can happen within minutes to hours of exposure to the substance that the person is allergic to.
呼叫999救护车立即正如你可能有一个一般性的过敏性反应，这可能是致命的。
Call 999 for an ambulance immediately as you may be having a generalised allergic reaction and this can be fatal.
参考译文： 全身性过敏反应是最严重的过敏性反应，其通常由黄蜂或蜜蜂叮咬或食用花生所致。
Anaphylaxis is the most severe allergic reaction of all and is most often triggered by wasp or bee stings or peanuts.
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