Zeichner says that early exposure to dirt and bacteria may make the skin less sensitive as you age, and prevent allergies and conditions like eczema.

蔡克纳说，早期暴露在污垢和细菌的环境中会让皮肤到你年纪的时候更不容易敏感，防止过敏和如湿疹一样的症状。

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Zeichner says that early exposure to dirt and bacteria may make the skin less sensitive as you age, and prevent allergies and conditions like eczema.

蔡克纳说，早期暴露在污垢和细菌的环境中会让皮肤到你年纪的时候更不容易敏感，防止过敏和如湿疹一样的症状。

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