Pilots found them most useful while flying.

飞行员们发现它们在飞行时最有用。

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Few people expect luxury while flying, but these days, even the basics seem to be in bad shape.

很少有人希望在飞行时体验奢华，但如今，即使是最基本的东西似乎也不太好。

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McCain and Obama have been rehearsing questions and answers with members of their campaign teams while flying about the country.

麦凯恩和奥巴马在环游全国的旅途中，已经和各自竞选阵营的成员排演过辩论问答。

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The Bell 430 helicopter disappeared while flying through a heavy rain storm, en route to an unannounced inspection of a local district.

VOA: standard.2009.09.03

So she joined the Red Cross. Amelia Earhart first became interested in flying while living in Toronto.

VOA: special.2010.05.26

Listen while Willie Nelson plays "Angel Flying Too Close To the Ground."

VOA: special.2010.05.12

Last month, while flying an Apache helicopter, he was shot down near Tajib, Iraq.

NPR: California Town Hit Hard by War Losses

While flying back to Chicago from Toronto recently, he got some ideas for how to improve the entrance.

WSJ: Designing Towers to Catch the Sky | Creating

When something goes wrong while flying, it can feel far more punishing than a bad hotel or unsatisfactory purchase.

WSJ: What United, American, Delta, Southwest, JetBlue, Alaska, Virgin America Airlines Learn From Customer Surveys