The emperor issued an order to the entire army to start the attack.

Mr. Mashita is my friend.

Mr. Shimooki is my best friend.

Various cultures exist under the sky, meaning in the whole world.

The bearded seal is a marine mammal often seen in the Arctic.

He is doing a special exercise to train his digastric muscle.

My mother has been suffering from temporomandibular joint dysfunction for many years.

The inner slats of this fan are made very finely.

He carefully stores the family's urn.

Ossification is a biological process that refers to the transformation of tissue into bone.