They were prepared to fight to the bitter end for their rights.

他们甘愿为自己的权利斗争到底。

《牛津词典》

The author's intention is to keep everyone guessing until the bitter end.

这位作者的意图是在最终结尾前让所有人都猜不透。

《柯林斯英汉双解大词典》

Win or lose, we will fight to the bitter end.

胜也罢，败也罢，我们一定要战斗到底。

youdao

Al Arabiya TV reports that the government is welcoming the Houthi rebel leader's offer to negotiate to put an end to the bitter fighting which has devastated parts of Saada province.

VOA: standard.2009.10.11

They accepted specious logic about what limited government means, right up until the bitter end.

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To the bitter end, the bad-tempered Abuja summit was completely overshadowed by the Zimbabwe crisis.

BBC: NEWS | Africa | Reporter's diary: Commonwealth summit

In contrast, the insurgents appear to be disciplined and determined to fight to the bitter end.

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