They are twin brothers.

Digital terrestrial television broadcasting has good picture quality and high sound quality.

My hand got caught in the door, and it hurt.

My school building is very big.

He was recalling fondly the summer vacations of his childhood.

Tsutomu vowed eternal love.

The People's Democratic Republic of Yemen was once an existing country.

He is in mourning for his father.

It's difficult to handle this machine.

The Democratic People's Republic of Korea is located in Asia.