His words can be understood as a metaphor.

Kei's birthday party was filled with everyone's jubilation.

Kinshi is my best friend.

The handle of this umbrella is very easy to grip.

The erector spinae is an important muscle for keeping the back straight.

He is doing a special exercise to strengthen his omohyoid muscle.

The mylohyoid muscle plays an important role in opening the mouth.

He damaged his peroneus tertius muscle due to a foot injury.

The geniohyoid muscle is a muscle located under the jaw.

The thyroarytenoid muscle plays a crucial role in regulating the tension of the vocal cords.