2 sentences

1. 雨滴是在云层中凝结生成的。

   yǔ​dī shì zài yún​céng zhōng níng​jié shēng​chéng de.

   Raindrops are formed by condensation in the clouds.

   Source: Dong Chinese Dictionary

2. 他独坐窗前，看着外面落下的雨滴。

   tā dú zuò chuāng qián, kàn zhe wài​miàn luò​xià de yǔ​dī.

   He sat alone by the window, watching the raindrops falling outside.

   Source: Dong Chinese Dictionary