You've got nothing to lose. 你已经没什么可失去的了。

　　I've got nothing to lose except you. 除了你，我没什么可以失去的。

　　We have absolutely nothing to lose. Trust me. 我们已经没有退路了，相信我。

　　Come on, do it. You got nothing to lose. 来，试试看。你已经没什么余地了。

　　Are you going to join the Marines? 你要参加海军陆战队？

　　Why not? I have nothing to lose. 为什么不呢？我已经没什么退路了。