The bedrock of this area is very hard.

She decided to undergo facial reconstructive surgery.

He is dedicated to the study of organogenesis.

I am very interested in social science.

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

We are planning to establish a new production line.

He is one of the main producers in this region.

This factory has introduced the latest machines for mass production.

His success had a cause-and-effect relationship with his efforts.

He and I are related by blood.