He found an ancient fire clock.

He measures time accurately using an atomic clock.

There is a new radio clock in my room.

He looked at his pocket watch and checked the time.

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

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

I have been to Outer Mongolia.

I have been to Chicago.

There were many passion fruit flowers blooming in her garden.

He started walking around the room in an anticlockwise direction.