The most important thing is not to admit defeat until you really have to.

最重要的事就是非到不得已不要认输。

《柯林斯英汉双解大词典》

Finally they had to admit defeat.

最后他们不得不承认失败。

youdao

Step back is not to admit defeat, I have my grace.

退一步并不是认输，我也有我的风度。

youdao

I go the most direct way. Anyone who eats crow has to admit a mistake or defeat.

VOA: special.2010.06.13

Barnes said all legal options had been exhausted and the "heartbroken" family finally had to admit defeat.

CNN: Belfast council puts Lennox to sleep despite outcry

To concede is to admit defeat, and to admit to the world that where there is smoke there is fire.

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Only now that Germany and France (along with Italy and Portugal) look set to breach the budget-deficit limits imposed by the pact, does the EU look ready to admit defeat and delay the deadline by a couple of years.

ECONOMIST: The fragile world recovery | The