Early life-forms on Earth were confined to the oceans because water was the only available protection they had against ultraviolet radiation.

地球上早期的生命形式被限制在海洋里，因为水是帮助它们抵御紫外线辐射的唯一有效保护。

youdao

Many types of radiation, especially ultraviolet rays from the Sun, can damage skin cells and cause cancer.

许多类型的辐射都会损害皮肤细胞并导致癌症，尤其是来自太阳紫外线的辐射。

youdao

Ultraviolet radiation and violent stellar winds have blown out an enormous cavity in the gas and dust enveloping the cluster.

紫外线和猛烈的星际风，在气体以及包裹星群的灰尘上吹出了一个硕大的洞。

youdao

It says ultraviolet radiation from the sun can reach you on cloudy days, as well as bright and sunny ones.

VOA: special.2010.07.06

The main cause of skin cancer is ultraviolet radiation from the sun.

VOA: special.2010.07.06

They say modern automobile windshields block two kinds of ultraviolet radiation.

VOA: special.2010.07.06

Changes in the amount of ultraviolet radiation from the Sun affect the ozone layer.

BBC: Viewpoint: The Sun and climate change

Because of abundant solar ultraviolet radiation at the surface, organic molecules might not be preserved as well as clay minerals.

CNN: Have a drink on Mars

The rooms' outer walls are each filled with 250lbs of insulating polyethylene to protect astronauts during solar flares and damaging ultraviolet radiation.

BBC: A space of one's own