You have nothing to lose by telling the truth.

你讲真话是不会吃亏的。

《牛津词典》

You have nothing to lose, except some weight.

你不会有什么损失的，除了你的体重。

youdao

The beauty of the startup environment is we have nothing to lose.

启动环境的美丽之处在于我们没有什么可以失去的。

youdao

Ironically, in my position today, playing like I have nothing to lose is dangerous.

FORBES: A Lot to Learn About Nothing to Lose

The owners have nothing to lose and the bands have everything to gain.

NPR: No-Cover Mondays: L.A.'s Rock Residency Scene

If they decide they have nothing to lose, this ploy could now turn out to be a weakness.

ECONOMIST: Revolt and repression in Syria