The news was like a thunderbolt out of a clear sky.

这消息犹如晴天霹雳。

《新英汉大辞典》

Later they swoop down out of the sky on Egypt, for reasons the movie doesn't make crystal clear, so they also can run in slo-mo from explosions.

接着他们就把埃及搅了个天翻地覆——但影片并没交待为什么——所以观众们才能有幸看到他们从爆炸现场跳出来的画面。

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He had to wait days until a one-hour window of clear sky broke out, enabling him to quickly grab his camera and take his pictures at the remote lake location.

在一个人迹罕至的湖畔，他等了好几天才等到一个小时适合拍照的晴空——时机一出现，他立马带上相机出去拍照。

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Thin streams of white smoke fall out of the clear sky onto pastoral farmland, where small fires then dot the landscape and create smoke that blankets the area.

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" 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'