We can protect the environment by recycling plastic bottles.

This plastic bottle is recyclable.

He is making a Rube Goldberg machine at home.

This transporter is designed to carry luggage efficiently.

This experimental device is used to create new substances.

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.

This area is still undeveloped and rich in nature.