Humans are pretty good at seeing reds, blues, and yellows, but for animals ranging from bees to reindeer, ultravioletlights up their vision.
人眼善于分辨红色，蓝色和黄色，但是对于蜜蜂和驯鹿之类的动物来说，紫外线却能让他们看得更清楚。
2
During the final stage, the water is disinfected - by the addition of chlorine, hydrogen peroxide and other chemicals and by running it past ultravioletlights.
在最后一个步骤中，水经过氯、过氧化氢和其它化学品消毒，并且经过紫外线灯消毒。
3
The zoo said raising the abandoned iguanas was proving costly because of the expensive ultravioletlights needed by the reptile and because of their healthy appetites.