This is part of my collection, especially the Arabian cowry is rare.

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

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

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

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

Minors are legally prohibited from drinking alcohol.

He is still an immature pianist.

His country was sanctioned by other countries due to nonpayment of tribute.

Are you really not going to use this unused laptop?

He is said to be an unbeliever.