4 sentences

1. 她的丈夫情况十分危急。

   tā de zhàng​fu qíng​kuàng shí​fēn wēi​jí.

   Her husband is in a very critical condition.

   Source: OpenSubtitles

2. 在危急时刻，他成了大家的救星。

   zài wēi​jí shí​kè, tā chéng le dà​jiā de jiù​xīng.

   At the critical moment, he became everyone's savior.

   Source: Dong Chinese Dictionary

3. 他在危急时刻听到了祖国的召唤。

   tā zài wēi​jí shí​kè tīng​dào le zǔ​guó de zhào​huàn.

   He heard the call of his motherland at a critical moment.

   Source: Dong Chinese Dictionary

4. 由于伤势严重，他的生命处于危急状态。

   yóu​yú shāng​shì yán​zhòng, tā de shēng​mìng chǔ​yú wēi​jí zhuàng​tài.

   Due to the severity of his injuries, his life is in a critical condition.

   Source: Dong Chinese Dictionary