This box contains contraband.

This temple has been a place where no women are admitted since ancient times.

This temple has been a place where women are forbidden from ancient times.

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.

This food may contain carcinogens.

The air in this area is greatly affected by pollutants emitted from factories.

We exist as a part of the material world.

An electron gun is a device for generating an electron beam.