Abnormal reaction in preventive vaccination is the serious adverse reaction happened in regular vaccination.
预防接种异常反应是指在规范接种合格疫苗所产生的严重不良反应.
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I may have to go to the emergency ward again due to abnormal reaction to medication.
我有可能要再到急症室去﹐因为我对药物产生不寻常反应.
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