1·I wonder if there's some UV light out of this new lighting set up in our classroom here.
好的，我想知道这里,我们教室里的这套新的照明装置,是否有一些紫外光出来。
2·Increased UV light may break down water molecules in the upper atmosphere, reducing cloud formation, says James Russell of Hampton University in Virginia, who was not involved in the study.
美国维吉尼亚州汉普顿大学的詹姆斯·拉塞尔没有参与这次研究，他说，增加的紫外光可能会分解高层大气中的水分子。
3·As melanin encounters UV light, it turns brown.
黑色素遭遇到紫外光后变成褐色。
4·Scientists know that UV light can cause genetic alterations that prevent DNA from replicating properly, and these mutations can lead to diseases such as cancer.
科学家认为紫外光能导致基因改变阻止DNA正常复制并且形成突变导致疾病例如癌症。
5·Results revealed that the light receptors, called rhodopsin, became most active under blue and UV light, prompting melanin production within seconds.
结果显示，光受体，称为视紫红质，在蓝和紫外光下最活跃，促使黑色素在几秒内产生。