For they are as light as upper air.

因为他们的身子是空气似的轻。

youdao

Upper air currents are driven across the Pacific Ocean astride the equator.

高空环流被驱使着，运动在横跨太平洋水域的赤道上。

youdao

They were monitoring the upper air to collect evidence of atomic explosions.

他们正在检测高空空气以收集原子爆炸的证据。

youdao

They would gather small amounts of air from the upper atmosphere.

VOA: special.2010.05.26

The pattern is common when La Nina -- the cooler than normal waters in the Eastern Equatorial Pacific -- influences upper air patterns across the southern United States.

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According to the International Air Transport Association, this is because upper-class passengers, although a small minority among international air travelers, account for almost a third of airline revenues.

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The tripartite lower grille comprises a blacked-out central portion flanked by large air intakes with upper and lower aero-blades, for extra awesomeness, I suppose.

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