His actions always have a duality.

Haplology is a part of linguistics, referring to the phenomenon where a part is omitted when the same syllable repeats.

Tritium is one of the radioactive isotopes.

He boarded the fighter plane as a tail gunner.

She stood on the stage in a dazzling manner, wearing a Juni-hitoe.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

UNESCO is an international organization that promotes the development of education, science, and culture around the world.