He proposed to me, I'm really happy.

Hearing about his success, I'm really happy.

He saw the character '憂', and remembered his deceased friend.

His face was filled with distress.

In linear algebra, the upper triangular matrix plays a very important role.

The Tenpō calendar is one of the traditional calendars of Japan.

It is said that a wandering spirit appears in that old house.

Oregon is one of the beautiful states in America.

This sofa is made of polyurethane.

This product is selling very well.