ultraviolet rays

简明释义

紫外线

英英释义

例句

1.Some tanning beds emit ultraviolet rays (紫外线), which can increase the risk of skin cancer.

一些日光浴床发出ultraviolet rays（紫外线），这可能会增加皮肤癌的风险。

2.The ozone layer helps block harmful ultraviolet rays (紫外线) from reaching the Earth's surface.

臭氧层有助于阻挡有害的ultraviolet rays（紫外线）到达地球表面。

3.Some plants thrive in direct sunlight, but too much exposure to ultraviolet rays (紫外线) can damage their leaves.

有些植物在直射阳光下生长良好，但过多暴露于ultraviolet rays（紫外线）会损害它们的叶子。

4.Wearing sunscreen is important to protect your skin from ultraviolet rays (紫外线) that can cause sunburn.

涂抹防晒霜对保护你的皮肤免受会导致晒伤的ultraviolet rays（紫外线）非常重要。

5.To reduce your risk of skin damage, avoid being outdoors during peak hours when ultraviolet rays (紫外线) are strongest.

为了减少皮肤损伤的风险，避免在ultraviolet rays（紫外线）最强的高峰时段外出。

作文

Ultraviolet rays, or 紫外线, are a type of electromagnetic radiation that comes from the sun. They are invisible to the human eye and have a shorter wavelength than visible light. While they play a crucial role in the natural world, their effects on human health can be both beneficial and harmful. Understanding 紫外线 is essential for protecting ourselves and making informed decisions about sun exposure. One of the most well-known benefits of 紫外线 is its ability to stimulate the production of vitamin D in our bodies. Vitamin D is vital for maintaining healthy bones and immune function. When our skin is exposed to 紫外线, it synthesizes this important nutrient, which helps prevent diseases such as osteoporosis and certain types of cancer. However, it is important to strike a balance; while some sun exposure is beneficial, too much can lead to adverse health effects.On the flip side, excessive exposure to 紫外线 can cause serious damage to our skin and eyes. The most common consequence is sunburn, which occurs when the skin is damaged by high levels of 紫外线. Over time, repeated sunburns can lead to premature aging, wrinkles, and an increased risk of skin cancer. The World Health Organization has classified 紫外线 as a human carcinogen, meaning that prolonged exposure can significantly increase the risk of developing melanoma and other skin cancers.Moreover, 紫外线 can also harm our eyes. Conditions such as cataracts and macular degeneration have been linked to excessive exposure to 紫外线. Therefore, it is essential to protect our eyes by wearing sunglasses that block out harmful rays whenever we are outdoors.Given these potential risks, it is crucial to take protective measures when spending time outside. Wearing sunscreen with a high SPF can shield our skin from the damaging effects of 紫外线. Additionally, wearing protective clothing, such as long sleeves and wide-brimmed hats, can help minimize exposure. Seeking shade during peak sunlight hours, typically between 10 a.m. and 4 p.m., is another effective strategy to reduce the risk of overexposure to 紫外线.In conclusion, 紫外线 plays a dual role in our lives. While it is necessary for producing vitamin D and supporting various bodily functions, it can also pose significant health risks if we do not take appropriate precautions. By understanding the nature of 紫外线 and implementing protective measures, we can enjoy the benefits of sunlight while minimizing its harmful effects. Awareness and education about 紫外线 are key components in promoting better health and well-being in our daily lives.

紫外线是来自太阳的一种电磁辐射类型。它们对人眼不可见，波长比可见光短。虽然它们在自然界中发挥着关键作用，但对人类健康的影响既有益又有害。理解紫外线对于保护自己和明智地决定日晒时间至关重要。紫外线最著名的好处之一是能够刺激我们体内维生素D的生成。维生素D对维持健康的骨骼和免疫功能至关重要。当我们的皮肤暴露在紫外线下时，它会合成这种重要的营养素，有助于预防如骨质疏松症和某些类型癌症等疾病。然而，保持平衡是很重要的；虽然适度的阳光照射是有益的，但过量照射可能导致不良健康影响。另一方面，过度暴露于紫外线可能对我们的皮肤和眼睛造成严重损害。最常见的后果是晒伤，当皮肤受到高水平紫外线的损害时就会发生。随着时间的推移，反复晒伤可能导致皮肤过早衰老、皱纹，并增加皮肤癌的风险。世界卫生组织将紫外线列为人类致癌物，这意味着长期暴露可能显著增加患黑色素瘤和其他皮肤癌的风险。此外，紫外线也可能对我们的眼睛造成伤害。白内障和黄斑变性等疾病与过度暴露于紫外线有关。因此，保护我们的眼睛是至关重要的，每当我们在户外活动时，佩戴可以阻挡有害光线的太阳镜是必要的。鉴于这些潜在风险，在户外活动时采取保护措施至关重要。使用高SPF值的防晒霜可以保护我们的皮肤免受紫外线的伤害。此外，穿戴防护服，如长袖衫和宽边帽，也可以帮助减少暴露。在阳光最强烈的时段，通常是在上午10点到下午4点之间，寻找阴凉处也是减少过度暴露于紫外线的有效策略。总之，紫外线在我们的生活中扮演着双重角色。虽然它对产生维生素D和支持各种身体功能是必要的，但如果我们不采取适当的预防措施，它也可能带来重大健康风险。通过了解紫外线的性质并实施保护措施，我们可以享受阳光的好处，同时最大限度地减少其有害影响。提高对紫外线的认识和教育是促进我们日常生活中更好健康和幸福的关键组成部分。