The sun was radiant in a clear blue sky.

湛蓝的天空阳光灿烂。

《牛津词典》

The sun blazed down from a clear blue sky.

耀眼的阳光从清澈蔚蓝的天空中照射下来。

《牛津词典》

There were swallows in the cloudless blue sky.

燕子在无云的蓝天上飞翔。

《柯林斯英汉双解大词典》

This was because all you could see was the very blue sky and the very hot sun.

VOA: special.2009.01.14

I think it was because people were overselling investments and saying, there's no limit to this investment but the blue sky above.

我想这是因为,当时人们过度宣传投资产品,并宣称,投资收益无止境,如头顶的蓝天那么遥远

耶鲁公开课 - 金融市场课程节选

The problem with the Blue Sky Laws was that they were each state done separately and it was hard for states to manage what were, basically, national businesses.

蓝天法的问题在于,各州的法律都是分开制定的,由各州政府去处理,然而全国性的问题却无从解决

耶鲁公开课 - 金融市场课程节选

Behind the trees, the sides of the valley shear up towards a blue sky.

BBC: Qu��bec's wood runners

There are a few feathers of high white cloud in an otherwise blue sky.

BBC: A portrait of summer in Finland

Mullins went on to release several LPs, including 1992's Better Days and 1994's Big Blue Sky.

NPR: From Station XPN: Shawn Mullins in Concert