1 sentence

1. 空气中的水蒸气遇冷凝结成小水珠。

   kōng​qì zhōng de shuǐ​zhēng​qì yù lěng níng​jié chéng xiǎo shuǐ​zhū.

   Water vapor in the air condenses into small droplets when it cools.

   Source: Dong Chinese Dictionary