There is nothing to lose and a lot to gain!

你什么都不会损失而会得到很多（好处）！

youdao

If there is nothing to lose, why nou have a try?

如果没有什么会失去，为什么不试一试呢？

youdao

The best thing about the service is, there is nothing to lose as there are no promises or charges during the quoting process.

此项服务的最好之处是在估价过程中不需要任何的承诺或者付费，也就是说什么也不会失去。

youdao

On Sunday, one senior figure said 'well, at least if you say a person is sick you are acknowledging the problem, and there is nothing to lose so long as you cure them'.

BBC: By Africa Correspondent Jeremy Vine

There is no incentive for those with nothing to lose to bow out gracefully.

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There is nothing that is more precious within the power structure that we cannot lose to save lives.

NPR: Nobel Laureate Explains Kenya's Battle for Peace