Retroflex is a phonetic feature that does not exist in Japanese.

A dorsal sound is a sound that is pronounced by the back of the tongue approaching or touching the palate or pharynx.

A central vowel is a vowel that is pronounced in the central part of the tongue.

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.

We should always remember the power of Kannon in difficult times.

Special judicial police officers are working hard every day to protect the law in Japan.

He trains his deltoid muscles at the gym every day.

He is doing special exercises to strengthen his cervical muscles.