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.

This perfume uses expensive ambergris.

We are planning to visit the nature reserve this weekend.

Our town suffered significant damage due to a natural disaster.