The Russian Federation is the country with the largest land area in the world.

He admitted that it is difficult to execute the plan, saying 'it is easier said than done.'

Well then, I'm off.

The history of the Empire of Japan is very interesting.

Mr. Hiruma is my best friend.

Well, let's get started!

The mesentery plays a role in supporting the intestines.

Interracial marriage promotes diversity and understanding.

Intermolecular forces are an important factor in determining the properties of a substance.

His work progress is slow.