Take Chinese lesson 17, "Look at pictures to know the weather". Find a sentence in the article, say its meaning and appreciate it.

The clouds in the sky are really varied and changeable. Some are like feathers, floating gently in the air; Some are like fish scales, neatly arranged one by one; Some come and go like sheep; Some are like a big quilt, covering the sky tightly; Others are like mountains, rivers, lions and galloping horses. ...

Using the rhetorical device of parallelism, the shape of the cloud is vividly written, highlighting the different forms of the cloud.