Rouran was an ancient nomadic tribe.

He is interested in the nomadic lifestyle.

His grip was too weak to open the jar lid.

There is always gentleness in his words.

His gentle voice echoed in the room.

I always feel healed by his gentle smile.

He does yoga every day to increase his body's flexibility.

There are various ethnic groups in the world.

This ancient artifact is very valuable.

It is very interesting to learn about ancient history.