There is a serious opposition between them.

They are opposing in terms of opinion.

I want to go to the national art museum.

In Japanese grammar, 'independent words' form the main part of the sentence.

His words and actions always show an antinomy.

My child goes to a municipal elementary school.

This room is like a chaos.

This era was a turbulent era.

An ovum is a female reproductive cell.

She is a twin sister.