Her dress was iridescent, reflecting light and emitting beautiful colors.

Please choose your favorite color using this color chip.

He is dark-skinned, suitable for working under the sun.

This fish has very vivid nuptial coloration, which it uses to attract females.

The characteristic of annelids is that their bodies are divided into ring-shaped segments.

This butterfly valve is used to control the flow of fluid.

He explained in detail about the structure of the sphenoid bone.

He drew a straight line using a T-square.

She is learning the grammar of the present progressive form.

Quantum chromodynamics is a part of particle physics that describes strong interactions.