This area is still undeveloped.

There are various ethnic groups in the world.

This area is still undeveloped.

This area is still undeveloped and rich in nature.

This area is still undeveloped, and nature is abundant.

A dehiscent fruit is a type of fruit that naturally splits open to release its seeds when it matures.

Humi is my best friend.

Seimi is my best friend.

On cold days, earmuffs are necessary.

He was reassigned to the position of department manager.