The government declared a state of emergency to prevent the spread of the new coronavirus.

He became a wealthy person at a young age.

I can hear the sound of a bell.

This sword is made of iron.

He bought a gold necklace.

He bought a gold necklace.

Because he is a wealthy person, he can buy anything.

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.