He associated that scent with his childhood memories.

It is important to clean your room every day.

It has become a habit to clean my room every day.

I remit money to my mother every month.

I need to send money to him.

I felt that his thought was very deep.

He is good at flying an airplane.

They waged war against the enemy country.

I am researching the history of the old name, San Francisco.

In old Japan, peasants used to till the fields and live.