He was playing an ancient flute.

Yō is always shining brightly around him.

Studying the ten Heavenly Stems helps to understand the traditional Chinese calendar system.

We need a detailed report to understand the real situation of this project.

He is good at playing the canon.

This three-dimensional art is very unique.

Please refer to the diagram below.

These two angles are in a supplementary relationship.

He is good at playing percussion instruments.

My bed is very comfortable.