Blue sky floating blossoming white clouds, the sun in the sky blooming brilliant smiling face.

湛蓝湛蓝的天空飘着朵朵洁白的云，太阳在空中绽开灿烂的笑脸。

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Outside the sun was shining and the sky blue and white big Jiduo floating clouds.

外面阳光明媚，湛蓝的天空上飘着几朵又白又大的云朵。

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The sky is blue, white clouds very white, under the sun we were happy.

天空很蓝，白云很白，在阳光下的我们很快乐。

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And the sky is blue, it says, because the sun produces white light which is made up of all the colours of the rainbow.

BBC: rainbow