Modern technology is advancing at an astonishing rate.

We should take responsibility as part of society.

He received the letter challenging him to a duel and began preparing for the duel.

Gender roles are an important element in defining individual behavior in society.

His role is to fulfill his responsibilities as a leader.

It is important to understand the importance of health.

Please use the emergency stairs in case of a fire.

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

He is a very excellent technician.

The advancement of science and technology has greatly changed our lives.