5 sentences

1. 消防员正在努力控制火势。

   xiāo​fáng​yuán zhèng​zài nǔ​lì kòng​zhì huǒ​shì.

   Firefighters are working hard to control the blaze.

   Source: Dong Chinese Dictionary

2. 火势迅速蔓延到了整个山坡。

   huǒ​shì xùn​sù màn​yán dào le zhěng gè shān​pō.

   The fire spread rapidly over the whole hillside.

   Source: Dong Chinese Dictionary

3. 有人在旧仓库故意放火，火势蔓延得很快。

   yǒu rén zài jiù cāng​kù gù​yì fàng​huǒ, huǒ​shì màn​yán de hěn kuài.

   Someone intentionally set fire to the old warehouse, and it spread quickly.

   Source: Dong Chinese Dictionary

4. 由于采取了有效的措施，火势迅速得到了控制。

   yóu​yú cǎi​qǔ le yǒu​xiào de cuò​shī, huǒ​shì xùn​sù dé​dào le kòng​zhì.

   Thanks to effective measures, the fire was quickly brought under control.

   Source: Dong Chinese Dictionary

5. 经过消防员几个小时的奋力扑救，大楼的火势终于被控制住了。

   jīng​guò xiāo​fáng​yuán jǐ gè xiǎo​shí de fèn​lì pū​jiù, dà​lóu de huǒ​shì zhōng​yú bèi kòng​zhì zhù le.

   After several hours of strenuous effort by the firefighters, the fire in the building was finally brought under control.

   Source: Dong Chinese Dictionary