My dream is to live in the United States of America someday.

The whooping crane is an endangered species, and it is difficult to see its beautiful figure.

The American red wolf is one of the endangered species.

The enemy plane carried out a strafing on our position.

I strafed the enemy's position.

He likes to take a walk in the park at dusk.

There is a clear duality in his character.

He emphasized obedience to the rules.

He learned to be obedient to his parents.

How much does this luggage weigh?