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.

A verb plays the role of expressing actions or states in a sentence.

We should utilize this new technology to the fullest.

School grammar is the foundation of Japanese education.

His Japanese sentences have many grammar mistakes.

I am interested in Japanese language education.

This shape is a parallelogram.

This shape is a parallelogram.