He taught me how to calculate the geometric mean.

He fractured his metatarsal bone.

The Second Sino-Japanese War was a war that lasted from 1937 to 1945.

This shop is currently open.

Infrasound is a type of sound that is inaudible to the human ear.

He believes that he has extrasensory perception.

Alpha Centauri, in the constellation of Centaurus, is the closest star to Earth.

A sub-brown dwarf is a celestial body between a planet and a brown dwarf.

Astrocytes are one of the important support cells in the brain.

He said, 'A nameless star comes out in the evening,' teaching me that achieving a goal is not easy.