3 sentences

1. 公司目前正处于生死存亡的难关。

   gōng​sī mù​qián zhèng chǔ​yú shēng​sǐ​cún​wáng de nán​guān.

   The company is currently facing a life-or-death crisis.

   Source: Dong Chinese Dictionary

2. 这是一个关乎公司生死存亡的重大决策。

   zhè shì yī gè guān​hū gōng​sī shēng​sǐ​cún​wáng de zhòng​dà jué​cè.

   This is a major decision concerning the survival of the company.

   Source: Dong Chinese Dictionary

3. 在生死存亡的关口，他做出了勇敢的决定。

   zài shēng​sǐ​cún​wáng de guān​kǒu, tā zuò​chū le yǒng​gǎn de jué​dìng.

   At the critical juncture of life and death, he made a brave decision.

   Source: Dong Chinese Dictionary