That abandoned factory was once full of vitality.

The existence of dark matter has not yet been fully proven.

Antibiotics don't work for colds, so please don't take them unnecessarily.

It is said that antimatter has properties opposite to those of matter.

We exist as a part of the material world.

He went to try out his new air gun.

This food may contain carcinogens.

He can't read the room, so he caused trouble for everyone at the party.

This factory uses compressed air to operate the machines.

He is always good at reading the atmosphere.