At the school sports festival, we did a three-legged race.

The twenty-four divisions of the solar year, or 'Nijyushi Sekki', is a system that divides the year into 24 parts according to the changes in nature.

He was working on that project round the clock.

The Mus musculus is widely distributed around the world.

The Twenty-Eight Mansions is one of the constellations used in ancient Chinese astronomy.

This is a model of a great icosahemidodecahedron.

This regular dodecahedron is a geometric shape with perfect symmetry.

This solid is called a regular icosahedron, and it is made up of 20 equilateral triangles.

This is the second time he's been late. Well, they say what happens twice will happen three times.

World War II lasted from 1939 to 1945.