太阳（和其它任何热的物体）持续辐射红外线，地球吸收红外辐射，并将它转换为原子或分子的运动，即热。
The Sun (and anything warm) is constantly emitting infrared, and the Earth absorbs it and turns the energy into atomic and molecular motion, or heat.
在二月份，一项由国家卫生研究所(NIH)研究者们做的研究发现50分钟持续的手机辐射增加了脑细胞活性。
In February, a study by researchers at the National Institutes of Health, revealed radiation emitted after just 50 minutes on a mobile phone increases the activity in brain cells.
——鲸鱼持续不断地暴露在太阳下，而如今却因紫外线辐射的增加而使皮肤遭受损害。
Whales are continuously exposed to the sun and are now suffering skin damage as ultraviolet radiation increases.
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