I owe him a great obligation.

This audio is very clear.

The greenhouse effect is causing the earth's temperature to rise.

An affricate refers to a specific type of sound in phonetics.

A labial sound is a sound that is pronounced using the lips.

Plosive sounds play an important role in linguistics.

His English pronunciation is very natural.

Please adjust the temperature of the room.

This greenhouse is used to grow various types of plants.

A phoneme is the smallest unit of language.