A large earthquake occurred yesterday, throwing the entire town into chaos.

A large earthquake occurred yesterday, throwing the entire town into chaos.

The seismologist is studying earthquake prediction and disaster prevention.

He is an expert in seismology.

He used a metal detector to search for treasure on the beach.

He used a radar to search for the ship.

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

The central processing unit of this computer is very fast.

This speech synthesizer generates very high-quality voices.

An earthquake early warning was broadcasted on TV.