A visitor has come.

I attend psychotherapy sessions every week.

He wrote a poem using the four treasures of the study.

An arc discharge occurs when electricity passes through the air.

In his study of international law, he particularly focuses on jus gentium.

We like to watch satellite broadcasting at home.

Phoenix is one of the constellations in the southern hemisphere.

When he opened the supernatural box, an astonishing power was released.

You can use spectroscopy to examine the components of a substance.

Today is my grandmother's death anniversary.