This also explains why some migrants from east Asia to northern Europe suddenly develop an allergic reaction to jackfruit once they have come into contact with birch pollen.
这也解释了为什么来自东亚的某些移民，到了北欧后，一旦接触到桦树花粉，会突然出现菠萝蜜过敏反应的现象。
This also explains why some migrants from east Asia to northern Europe suddenly develop an allergic reaction to jackfruit once they have come into contact with birch pollen .
这也解释了为什么来自东亚的某些移民，到了北欧后，一旦接触到桦树花粉，会突然出现菠萝蜜过敏反应的现象。
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