The bedrock of this area is very hard.

He is dedicated to the study of organogenesis.

She decided to undergo facial reconstructive surgery.

I am very interested in social science.

This year's output increased by 20% compared to last year.

He is one of the main producers in this region.

This factory has introduced the latest machines for mass production.

We are planning to establish a new production line.

There are many interests involved in this project.

The police only informed the authorized persons about the information related to the incident.