A species once extinct is gone forever.

一个物种一旦灭绝就永远消失了。

youdao

It seemed as if she'd been gone forever.

好像她已经永远地离开了一样。

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What if your home, and even the land it stood on, was gone forever?

如果你的家，甚至它所在的一整片土地，永远消失了呢？

youdao

And they say that it is likely that two species are probably gone forever.

VOA: special.2009.12.16

It eradicates identity, eradicates sense of self. It's gone forever, and you can see the change in pronouns.

它超越了身份，超越了自我意识，它永远持续，我们能从代词中找到变化。

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And a moment later, it is gone forever.

VOA: special.2009.05.17

So unless we can hitch a ride on some souped-up neutrinos, 2011 is gone forever.

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In contrast, a hotel room must be rented tonight, or it is gone forever.

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It was really only at the moment that I understood that he was gone forever.

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