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

He was expelled from the party because he took anti-party actions.

He opposed the plan.

Gravitational interaction creates attraction between objects.

The central processing unit of this computer is very fast.

This speech synthesizer generates very high-quality voices.

He likes to take a walk in the park at dusk.

He started walking around the room in an anticlockwise direction.

He deeply studied the history of anti-Semitism.

Retroflex sounds are difficult to pronounce.