'as we turned to see flames raging and black smoke billowing into the clear blue sky.

我们转头看去，只见火光冲天，黑烟滚滚，与湛蓝的天空形成鲜明的对比。

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They wore blue ribbons on their lapels as their entry credentials and as a symbol of the clear blue sky that preceded the moment everything changed.

人们在领口处佩戴着蓝丝带，既作为入场的凭证，也象征着灾难来临前的蔚蓝天空。

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The sun was radiant in a clear blue sky.

湛蓝的天空阳光灿烂。

《牛津词典》

The next day the sky was blue and clear.

VOA: special.2009.02.28

The sky was just a little lighter blue than his suit, clear and even with only one cloud in it, a large, blinding white one with curls and a beard." Notice that image of the cloud, the blinding white cloud.

天空比他身上蓝色的西装颜色更亮，更清朗，甚至,空中只有一朵白云，是大而亮白的螺旋状和,胡须状，注意这多云的图像，一朵亮白的云。

耶鲁公开课 - 1945年后的美国小说课程节选

And one day, outof the blue clear sky, I got a letter from Jenny wondering if I couldcome down to Savannah and see her, and that'swhat I'm doing here.

VOA: standard.other

The baked brown cliffs and the clear blue sky were joined by the tinge of green on the sandstone rocks for the first time, in my memory.

FORBES: Setting an Innovation Agenda for the Ocean: The Next Frontier for People Like Us

As he says this, the camera pans upwards to show an aircraft carving a line across the clear blue sky, a reference to both the double standards of Larson's patriotism and the secret that drives him on.

ECONOMIST: Sundance film festival

" Jesse Nichols, a librarian on the Senate Finance Committee and the first black appointed to a clerical position in the Senate, recalled that "Senator Gore used to come in and out of the clear blue sky he would say, 'Jesse, bring me a Coca-Cola.

CNN: Excerpt: 'The Prince of Tennessee: The Rise of Al Gore'