His conclusion is always clear and persuasive.

Ripples are spreading on the surface of the pond.

This furnace operates very efficiently.

I have been to Russia.

His novel has a strong element of eroticism.

Erotic manga is his secret hobby.

His new novel is causing a stir because of its erotic content.

I shared a new idea on that forum.

He was thinking with a pen held in his mouth.

The Russo-Japanese War was a war fought between Japan and Russia.