Most deny that the sky is red.

人们否认天空是红色的。

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The sky is red when the sun rises.

太阳升起时，红霞满天。

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The sun is setting. The sky is red.

太阳落山了。天空是红色的。

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The house is green, the sky is gray, the fire engine is red.

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Clearly intended as a consumer product, the EM-500 is available in five colors: yellow, blue, green, red and sky blue.

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But a clear, cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more easily than they do red light.

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