Mr. Fuchiwaki is my best friend.

Shimawaki is my best friend.

This sentence is emphasized using side dots.

His defense is vulnerable.

Mr. Wakisaka is my best friend.

He bit his both lips trying to hide his nervousness.

In phonetics, a bilabial sound refers to a sound that is pronounced using both lips.

Amphibians can live both in water and on land.

He publicly admitted that he is bisexual.

His story was as if the monsters were frolicking around.