He was riding around the park on a unicycle.

He conducted a series of experiments.

I think his advice is worth a thousand gold per word.

His hobby is underwater photography.

World War I was a large-scale war that lasted from 1914 to 1918.

He has always walked the path of sincerity.

Our house and his house are separated by a narrow body of water.

This graph is apparent at a glance, showing that sales are increasing.

Let's cherish every encounter with the spirit of 'once in a lifetime'.

He was reading a book in his room all day.