Though Ke Jie tried his best and he once saw the victory just a step away, he lost his best chance when he became excited.

尽管柯洁尽了自己最大的努力，他曾经看到胜利就在咫尺之遥，但当他变得兴奋时，他失去了最好的机会。

youdao

Jeff deceived me once already—I won't give him a second chance.

杰夫已骗过我一次，我不会再给他机会。

《牛津词典》

You once had a chance, but you lost it!

你曾经有机会，但是你错过了它！

youdao

Once,her mother was offered a chance to publish her poetry.

VOA: special.2010.04.18

And the thing is, as anyone who has launched a new bar or restaurant knows, you really only get once chance at retaining that crowd.

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He was once offered the chance to temporarily disable these sensory experiences , but chose not to take it.

BBC: News

So why not take a chance once again?

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