The study of filterable pathogens is an important part of virology.

In organic chemistry, the concept of conformational isomers is very important.

A tesseract is a four-dimensional geometric shape.

A 5-cell is a simple convex polytope in four dimensions.

The Democratic People's Republic of Korea is a country located in East Asia.

The Japanese Society for Rights of Authors, Composers and Publishers is an organization that protects the copyrights of musicians.

She started a special exercise to strengthen her adductor pollicis.

By strengthening the adductor hallucis, you can maintain the health of your feet.

The motto of this team is 'one for all, all for one'.

There is a proverb that says, 'Plan your day in the morning and your year on New Year's Day,' which means that you should plan your day in the morning and your year on New Year's Day.