Penguins cannot fly at all.

企鹅一点都不能飞。

youdao

We must shift for ourselves, and yet we cannot fly!

我们必须自己移动，可我们还不能飞！

youdao

They actually rely on their daylight vision and cannot fly during the night with no moonlight.

实际上，它们依靠的是昼视觉，在没有月光的夜晚则无法飞行。

youdao

"There are travelers who are stranded in Asia who cannot fly back home. At the same time, goods and services cannot be delivered."

VOA: standard.2010.04.19

"There are people stranded in Europe who cannot fly back home to Asia."

VOA: standard.2010.04.19

Helicopters cannot fly to the area because the thin air disables their blades, making hauling this graveyard down nearly impossible.

BBC: Everest's growing problem

These latest 15 have been de-registered and the remaining cannot fly because they have been sold for parts.

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The bigger fight for a series like this comes with what can and cannot fly on ad-supported television.

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