实用皮肤病学杂志投稿系统 关键词： 日光照射，光保护，皮肤癌，防晒剂 [gap=1333]Keywords: sun rays exposure, photoprotection, cutaneous cancer, sunscreens
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For instance, plastics have a known weakness to ultraviolet rays from the sun, and so long exposure might represent an issue.
例如，塑料有一个缺陷，不能长期暴露于太阳紫外线的照射中。
Recent studies conducted by doctors show that excessive exposure to the sun "s rays causes skin cancer."
最近医生所做的研究表明：过度暴露在阳光下会致癌。
Rays of hope: Regular exposure to the sun can help ward off cancer.
阳光带来希望：定期晒晒太阳可避免患上癌症。
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