Leaves change colour in autumn.

树叶在秋天改变颜色。

《牛津词典》

Some insects can change colour.

有些昆虫可以变色。

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They have taught plant proteins to change colour when in the presence of certain chemicals.

科学家改变了植物的蛋白成分，当它们暴露于某种特定化学品的时候，植物就会改变颜色。

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We stepped into Asia Crafts next door, where silver-tongued Kashmiris unrolled carpets that seemed to change colour every time they were turned upside-down.

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The Saint Lawrence, an almost constant by my side, seemed to change colour throughout the day, from choppy, muddy brown to a calm, silvery blue.

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The next stage, currently still in the laboratory, is to develop coatings that change colour when they absorb toxic chemicals, thus alerting soldiers that they are under chemical attack.

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