This company strictly adheres to the principle of fair trade.

You can solve the problem by using this method.

He saved money using the 'hou' (alternative spelling of 'fran') to go to France.

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.

He has a very passive personality.