do or die 非做不可，背水一战

Do or die

Definition: complete a task or utterly fail

定义：非做不可，背水一战。

It's do or die time now. We're getting married!

现在非做不可了，我们结婚了！

Well John, it's do or die. Let's go!

好吧，约翰，背水一战的时候到了，上吧！