Strong light will affect the depth of colour of your carpets and curtains.

强烈的阳光会使地毯和窗帘退色。

《牛津词典》

Take a very small paintbrush or pencil and a light, nearly white colour.

拿一个非常小的画笔或铅笔，和一种接近于白的浅色。

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When these products encounter ninhydrin, a particular bond is formed - a bond that absorbs light of a particular colour.

BBC: Hidden graves found using chemical 'sniffer' technology

Quantum dots are tiny structures made of semiconductors whose size determines, again through rules set by quantum mechanics, exactly what colour and amount of light they produce - and how often they produce it.

BBC: Quantum key distribution with single photons

As they age, the heads and legs become white and the fleece assumes a colour ranging from blue-grey to light grey.

BBC: Protected status for Lakeland Herdwick sheep