给这些人送水是生死攸关的事情。

Getting water to these people is ___a ___matter ___of ___life ___and ___death.

我告诉他这是生死攸关的事情。

I told him it was ___a ___matter ___of ___life ___and ___death.

立即手术的决定对病人来说是生死攸关的。

The decision to operate immediately was ___a ___matter ___of ___life ___and ___death for the patient.