Just remember that violet light is the end that actually has the shortest wavelength, which means that it also has, of course, the highest frequency.

只要记住，紫色光在末端，实际上，它有最短的波长，意味着它当然也有最高的频率。

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The violet light of dusk began to darken the sky.

紫罗兰色的黄昏降临，天空开始暗下来。

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The scientists needed a source of violet light, and found it in the gold nanoparticles.

因此科学家需要在金色纳米微粒中找到紫光源。

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SmartWater has a chemical fingerprint that links to a crime scene and is only visible under ultra violet light.

BBC: Prestbury war memorial

The action of ultra-violet light from the sun on a molecule called 7-dehydrocholesterol, found in the skin, turns it into the vitamin.

ECONOMIST: Schizophrenia: Let the sun shine in | The

One moment, the ethereal white or green curtains of light with a streak of violet take on forms that evoke the ancient mythology of the north - a palace of lights, a Sami fire in the wilderness, the prow of a Viking ship.

BBC: The perfect trip: Norway