He is majoring in engineering.

What is this organism?

I decided to try alternative medicine for treating my cold.

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 an expert in electronics.