The central vowels in Japanese are 'a', 'e', 'o'.

Front vowels are pronounced using the front part of the tongue.

A front vowel is a vowel that is articulated with the front part of the tongue.

He is doing exercises to strengthen his genioglossus muscle.

The hyoid muscle is an important muscle that connects the larynx and the tongue.

We should reduce our energy consumption.

I heard the news that an asteroid is approaching Earth.

His shop embodies the epitome of Tokyo, like a mini Tokyo.

My son has a pediatrics appointment today.

He turned his room into a miniature Tokyo.