Allergic constitution of the external environment, climate change, easy to catch a cold, too sensitive causing pharyngitis.
过敏体质的人对外界环境、气候的改变过度敏感，容易感冒，引起咽炎。
Because of allergies have a certain genetic constitution, can understand their parents suffering from asthma, allergic rhinitis, and so on.
因过敏性体质有一定的遗传性，可了解其父母是否患有哮喘、过敏性鼻炎等。
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