This new jet can fly at supersonic speeds.

I saw a jet flying in the sky.

The speed of sound is about 343 meters per second in the air.

This new style smartphone has a lot of features.

He believes that he is an extra-sensory person.

He was watching the flight of the airplane.

The bird is flying in the sky.

I have ultra-high-speed internet at my home.

This airplane flies at subsonic speed.

Hand washing and wearing masks are important for the prevention of severe acute respiratory syndrome.