Water refracts, or bends, the light, separating it into red, orange, yellow, green, blue, and violet

水把光线折射或弯曲，而分离为红、橙、黄、绿、蓝和紫色。

youdao

Cut a leaf from an African Violet, Put it in water.

从一棵非洲紫罗兰身上切下一片叶子，把它放在水里。

youdao

The longer wavelengths, such as red and orange, are absorbed very quickly and penetrate into the water to a much shallower depth than the shorter blue and violet wavelengths.

波长越长，如红色和橙色，比波长较短的蓝色和紫色穿透到浅水的深度很快被会吸收得很多。

youdao

Water hyacinth grows into a thick bed of waxy leaves and violet flowers that cover the surface of the lake.

CNN: Flower power threatens Kenya's Lake Victoria