He is majoring in aerospace engineering.

An antiprism is a part of geometry, and its shape is very unique.

He made a model of a triangular prism.

The airplane disintegrated in mid-air.

He performed acrobatics in midair.

He is concentrating on studying for the exam.

This product is a reimported one.

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

This product is a reimport.

He was arrested for the crime of smuggling in.