This hardened dirt is so hard, nothing can be planted.

The base of this building is very strong.

He married a legitimate wife and built a happy family.

He observed a year of mourning after his father's death.

He was a swordsman named Zan in the past.

He is my greatest enemy.

He learned to discard unnecessary things.

Tsuyoshi is a very strong person.

The steam train runs by emitting steam.

He sacrificed his time for the team.