I am now facing the toughest challenge in my career. It's a do or die case for me.

我现在面临事业中最艰难的挑战，这是我的生死抉择。

youdao

The case was adjourned sine die.

此案无限期延迟审理。

《牛津词典》

In any case, if it is written that we must die, we shall at least die together.

无论如何，如果命中注定我们必须死，我们至少会一起死。

youdao

Malalay Ahmadzai, the mother and child healthcare specialist for UNICEF in Cambodia, says both conditions require rapid treatment in the case of blood loss a woman can die within a few hours.

VOA: standard.2009.11.10

In the normal case,I die when my body stops functioning, in terms of the body functions.

通常，我在身体停止运作时就死亡了，这说的是在生理功能停止。

耶鲁公开课 - 死亡课程节选

So it's not just merely the case that in fact we are all going to die; it's a necessary truth that we're all going to die.

所以我们会死去,不仅是一个事实;,我们会死去还是必然的真理。

耶鲁公开课 - 死亡课程节选

The Simpson case will not die.

CNN: Letting go of Simpson case

They know what to do in time before their child actually has danger signs, like convulsions, and are likely to die unnecessarily, as is the case sometimes.

NPR: Gates Foundation Backs Zambian Malaria Initiative

Politicians and economists frequently make dire predictions about the economic impact of business failure, but as Gershenoff's example makes plain, businesses frequently die (in Gershenoff's case, he switched to sports apparel) only to be replaced by others.

FORBES: Magazine Article