The sky in Lanzhou is just like a puddle of seawater.

Several clusters of drifting white clouds

Dot the sky to form a beautiful sight

With blue sky, white clouds and tall buildings

Lanzhou is just an ideal place to listen to the sound of the Yellow River waves.

During the period from January to June of this year, among 168 major cities,

20 cities including Nanjing and Suzhou stand out in air quality improvement

Lanzhou ranks 10th