Moura goes to bed at 9 o'clock every day.

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.

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

Rin received a gift from him.

The plan to establish a new company is in progress.

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

Mou is a common surname in China.

His actions destroyed his family's happiness.