We have a picnic by the river every weekend.

Japan is facing a brain drain of excellent scientists and engineers.

I will participate in the factory coop next week.

My father works at a paper mill.

My father works at a filature.

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.