The Paleogene period was a very important time in the history of the Earth.

I have been to Outer Mongolia.

I am planning to go to Inner Mongolia, an autonomous region of China, next week.

It is said that this watercourse was deep enough for large ships to pass through in the past.

We traveled via the highway.

I am planning to go to Gangwon next week.

Calculating the trajectory is difficult.

We went on a trip using the expressway.

This land has a wide road frontage to the south.

He is a person who respects chivalry.