He made a model of a regular icosahedron.

Heavy hydrogen is one of the isotopes of hydrogen.

Because of his indecisive nature, he always takes a long time to choose a menu at a restaurant.

He was playing video games all day.

He told me the whole story of the incident.

It's my habit to go to the Jusan Mairi every year.

He has been living in this town for several decades.

What is the length and breadth of this room?

He was convicted of a serious crime.

His company made a profit of one billion yen.