3 sentences

1. 年轻人们对这项事业充满了火热的激情。

   nián​qīng​rén men duì zhè xiàng shì​yè chōng​mǎn le huǒ​rè de jī​qíng.

   The young people are full of burning passion for this cause.

   Source: Dong Chinese Dictionary

2. 随着古玩市场的火热，这些瓷器的身价也翻了几倍。

   suí​zhe gǔ​wán shì​chǎng de huǒ​rè, zhè​xiē cí​qì de shēn​jià yě fān le jǐ bèi.

   With the booming antique market, the value of these porcelains has multiplied.

   Source: Dong Chinese Dictionary

3. 火热的太阳高挂在天空中。

   huǒ​rè de tài​yang gāo guà zài tiān​kōng zhōng.

   The fiery sun hangs high in the sky.

   Source: Dong Chinese Dictionary