We have to quarantine at home for two weeks to prevent the spread of the new coronavirus.

He hired a lawyer to protect his interests.

This artwork is subject to droit de suite.

He handled the handgun carefully.

He received bayonet training in the military.

He is researching about a new energy source.

He is known as an excellent researcher.

I am a member of that research association.

That man is my father.

His story is based on his own real experience.