2 sentences for 断气 (duàn​qì)

1. 老人平静地断气了。

   lǎo​rén píng​jìng de duàn​qì le.

   The old man passed away peacefully.

   Source: Dong Chinese Dictionary

2. 由于管道维修，小区暂时断气了。

   yóu​yú guǎn​dào wéi​xiū, xiǎo​qū zàn​shí duàn​qì le.

   Due to pipe repairs, the gas supply to the residential area has been temporarily cut off.

   Source: Dong Chinese Dictionary