Her necklace was in the beautiful shape of a butterfly.

He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.

He always keeps in mind the phrase 'If one learns without thinking, it is a waste.'

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

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

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

He drew a straight line using a T-square.

This shape is a parallelogram.

This shape is a parallelogram.