2 sentences

1. 水在室温下是液体。

   shuǐ zài shì​wēn xià shì yè​tǐ.

   Water is a liquid at room temperature.

   Source: Dong Chinese Dictionary

2. 这种药剂需要保存在室温下。

   zhè zhǒng yào​jì xū​yào bǎo​cún zài shì​wēn xià.

   This medicine needs to be stored at room temperature.

   Source: Dong Chinese Dictionary