3 sentences

1. 地球内部的热度极其惊人。

   dì​qiú nèi​bù de rè​dù jí​qí jīng​rén.

   The heat inside the Earth is incredibly intense.

   Source: Dong Chinese Dictionary

2. 他摸了摸孩子的额头，感觉还有点儿热度。

   tā mō le mō hái​zi de é​tóu, gǎn​jué hái yǒu​diǎn r rè​dù.

   He felt the child's forehead and noticed he still had a bit of a fever.

   Source: Dong Chinese Dictionary

3. 这篇文章在网络上的热度一直居高不下。

   zhè piān wén​zhāng zài Wǎng​luò shàng de rè​dù yī​zhí jū​gāo​bù​xià.

   The popularity of this article on the internet has remained high.

   Source: Dong Chinese Dictionary