He made a model of a dodecahedron.

This house is warm even in winter because it has double-pane windows.

He is learning how to use the second adjective.

Double dipping is a breach of etiquette.

This game is really fun from the second playthrough.

Redistribution of this software is prohibited.

He is working round the clock.

His shots are always on target.

He is suffering from muscle pain in his middle scalene muscle.

The middle pharyngeal constrictor is an important muscle that helps with swallowing.