This area is still undeveloped.

We are focusing on the research and development of new products.

We are working on the development and import of new software.

It took a long time to set up the development environment.

Developmental dictatorship can bring about economic growth, but there are also issues of human rights violations.

He found the magic bullet to solve the problem.

This area has a lot of unexploded ordnance left over from the war, so caution is necessary.

Danma is my best friend.

He fired a round shot from the cannon.

He threw a smoke bomb to obstruct the enemy's view.