Due to his obstruction, we were unable to proceed with the project.

The room is hot, so please turn on the air conditioning.

An abnormality was observed in his anterior chamber.

He did not just stand by as an onlooker, but actively participated.

His collection of books is so vast that it would take a lifetime to finish reading them.

He is learning karate for self-defence.

Single-celled organisms have the most basic form in the biological world.

He is suffering from poverty.

I think there is a contradiction in his story.

He threw a net to catch fish.