He was an eyewitness to the incident.

Kunminjōon is a book for teaching the correct pronunciation of Hangul.

Infrasound is a type of sound that is inaudible to the human ear.

Debuccalization refers to the phenomenon in phonetics where a specific sound is pronounced outside the oral cavity.

The Atlantic puffin is one of the most commonly seen birds in the North Atlantic.

He said, 'Even if you die in the evening, it's okay if you ask the way in the morning,' teaching me the importance of living each day to the fullest.

Understanding the concept of 'Ha-line conversion sounds' is important in learning Japanese.

There is a proverb that says, 'Plan your day in the morning and your year on New Year's Day,' which means that you should plan your day in the morning and your year on New Year's Day.