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

He took the horse to the stable.

This field is using stable manure as fertilizer.

We used manure to fertilize our garden.

My horse is kept in that stable.

This marathon is the best opportunity to test your endurance.

He made a romantic proposal of marriage to her.

He proposed to her in the park.

I have been to Daegu.

He bought nine apples.