Cold air can trigger chest pain or asthma attacks in some people.

冷空气可能会引发胸疼或者哮喘。

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Exposure to sun or wind can also trigger the cold sores.

太阳的暴晒或者风吹也会引发唇疱疹。

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Exposure to sun or wind can also trigger the cold sores.

太阳的暴晒或者风吹也会引发唇疱疹。

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