His absolute territory is only his room.

He publicly announced that he is bisexual.

This calorimeter is used to accurately measure the heat of a substance.

I attend psychotherapy sessions every week.

I used binoculars to observe birds in the mountains.

French Guiana is located in South America.

Heavy hydrogen is one of the isotopes of hydrogen.

He was playing video games all day.

He was surrounded by his family when he was on his deathbed.

This plastic is made from a special polymer.