5 sentences

1. 秋天的天气非常凉爽。

   qiū​tiān de tiān​qì fēi​cháng liáng​shuǎng.

   The autumn weather is very cool and pleasant.

   Source: Dong Chinese Dictionary

2. 微风拂面，感觉非常凉爽。

   wēi​fēng fú miàn, gǎn​jué fēi​cháng liáng​shuǎng.

   The breeze brushing against the face feels very cool.

   Source: Dong Chinese Dictionary

3. 他在夏天喜欢穿凉爽的葛衣。

   tā zài xià​tiān xǐ​huan chuān liáng​shuǎng de gě​yī.

   In the summer, he likes to wear cool clothes made of kudzu fiber.

   Source: Dong Chinese Dictionary

4. 山里的空气凉爽，是避暑的好地方。

   shān lǐ de kōng​qì liáng​shuǎng, shì bì​shǔ de hǎo dì​fang.

   The air in the mountains is cool, making it a great place to escape the summer heat.

   Source: Dong Chinese Dictionary

5. 在凉爽的空气中，声音传播效果最好。

   zài liáng​shuǎng de kōng​qì zhōng, shēng​yīn chuán​bō xiào​guǒ zuì hǎo.

   Sound travels best in cool air.

   Source: OpenSubtitles