The key to success is in your own hands.

He knows my secret, so he has something on me.

I want to travel to many countries.

My country is blessed with beautiful nature.

My country is Japan.

Esperanto is one of the most famous international auxiliary languages.

He set out on a journey in search of a new world.

He set out on a journey in search of the New World.

He is interested in the history of the Old World.

His grandfather fought in the Second World War.