It's difficult to calculate the area of this polygon.

The region of Kyōto, Osaka, and Nara is deeply rooted in Japanese culture and history.

He has an introverted personality, so he's lively at home but quiet outside.

I have been to Benxi city in China.

Daqing is a city in China.

That table is oval-shaped.

I am creating a genealogy of my family.

He recovered his health quickly.

His footsteps were light and brisk, like the wind.

As time passed, his feelings changed.