The saber-toothed tiger is a type of extinct mammal.

Rodents are widely distributed around the world.

In phonetics, a sibilant is used to represent a specific sound.

He gritted his teeth to bear the pain.

He was prescribed an antidepressant.

He was prescribed antidepressants by his doctor.

I repaired the broken vase using instant glue.

I spray deodorizer in my room every day.

This detergent contains a high-quality surfactant.

This rocket is using a new type of combustion agent.