He was diagnosed with liver failure.

This town once reached its height of prosperity.

His talent is something extremely uncommon.

He proposed a complete reform.

An abnormality was observed in his anterior chamber.

This perfume contains ambergris, an expensive ingredient.

He is facing the problem of erectile dysfunction.

I have been to North Jeolla.

Natural language understanding is an important field of artificial intelligence.

We must strive to protect the natural environment.