The topography of this area is very complex.

This problem is very complex and cannot be solved easily.

In my area, a summer festival is held every year.

It is a very beautiful view.

I was amazed at his extraordinary talent.

Please press this button in case of emergency.

Please use the emergency stairs in case of a fire.

Due to the earthquake, the city declared a state of emergency.

We camped in a densely wooded area.

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