In phonetics, a sibilant is used to represent a specific sound.

If you don't get regular dental check-ups, you may develop periodontitis.

If you don't have regular dental check-ups, you may develop periodontitis.

The saber-toothed tiger is a type of extinct mammal.

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.

She was massaging her nape.

He has strong masseters, so he can easily bite through hard food.