He cooked using an oriboru.

Oligarchy refers to a political system where a few rulers govern the country.

My biorhythm is disturbed, and I've been tired lately.

He drew a heptagon shape.

Nanamiko is my best friend.

I wake up at seven o'clock every day.

Mr. Nanatani is my best friend.

My younger sister is seventeen years old.

Let's have a barbecue with a shichirin tonight.

It's very interesting to learn about the Seven Wonders of the World.