Mr. Ikutame is my best friend.

She is learning the grammar of the present progressive form.

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

He drew a straight line using a T-square.

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

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

Dermaptera is a type of insect, characterized by its distinctive pincer-like tail.

Dermaptera is a type of insect that is often seen in summer.

The Ubame oak tree is a native species of Japan and is very beautiful.

He is really handsome, isn't he?