He is interested in diachronic linguistics studies.

She is still a virgin.

She is still an innocent girl, with a pure heart.

I have been to Sinuiju.

Sinuiju is a city in North Korea.

Hakumimigi is a country located in Europe.

He often takes things out of context to steer the conversation in a way that suits him.

I use a set square to draw shapes.

In chemistry class, I learned about acid anhydride.

In chemistry class, I learned about acidic oxides.