加州大学河滨分校的科学家已经发现防晒霜中能阻挡紫外线辐射的分子时间一长就会渗透到皮肤里，使体表更容易受紫外线攻击。

Scientists at the University of California at Riverside have found that molecules(6) that block UV radiation in sunscreen can, over time, penetrate(7) into the skin, leaving the outer body vulnerable.

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研究人员称，除非热爱晒太阳的人们不断地反复涂抹防晒霜，否则防晒霜的成分本身会攻击皮肤，使身体更容易受紫外线辐射的影响。

Unless sun lovers continually reapply sunscreen, agents in the sunscreen itself can attack the skin and leave the body susceptible to ultraviolet radiation, researchers say.

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