医生们为挽救男孩的生命做出了最后一次绝望的尝试。

The doctors made one last ___desperate attempt to save the boy's life.

他们发出了绝望的求助呼吁。

They made a ___desperate appeal for help.

我几乎绝望了，试图想出任何可能的解决方案来解决我的问题。

I was almost ___desperate, trying to think of any possible solution to my problem.