This mountain is steep, making it difficult to climb.

The steepness of this mountain is a big challenge for climbers.

Toshin came up with a sagacious way to solve the problem.

The park is full of flowers in late spring.

Prostitution is prohibited by law.

She was prostituting herself to earn a living.

I have been to Changchun.

The park is beautiful with fresh greenery in early spring.

The spring breed of silkworms has started making cocoons.

Spring and autumn are the seasons when the beauty of nature stands out.