How does the river flow to expand the sentence?

1 The river is endless, showing off its surging waves; Trees towering in the snow, tall and straight is their boundless green; The mountains rise and fall, showing a strong body. The grassland stretches for thousands of miles, showing a broad mind. Man built a dam to stop the river, showing heroism.

The river is endless, showing off its surging waves; The mountains stand tall, showing their tall peaks; The blue sky is vast and distant, showing your broad mind.

The river is endless, showing off its surging waves; The river is running endlessly, which is a natural and happy sport; The river is constantly flowing, nourishing the rich resources on both sides of the strait; The river is running endlessly, and what is unrestrained is people's high passion.