He is the center of the team.

I conducted an interview in a question-and-answer format.

Life is a series of ups and downs.

He does his work perfectly, dotting the i's and crossing the t's.

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

The axis plays a role in supporting objects by rotating.

Earth is one of the planets in the solar system.

The thirty-first day is my birthday.

We have our wedding on the twenty-first day of the month.

He feels it takes time to acquire new skills, but Rome wasn't built in a day.