This food may contain carcinogens.

Scientists are warning that this substance has carcinogenicity.

This area is still undeveloped.

This area is still undeveloped and rich in nature.

Suddenly, I heard the sound of an explosion from afar.

Scientists are warning that this substance is carcinogenic.

He is struggling with the spelling pronunciation of English.

Learning about the nasal sound rule in Japanese is very important for understanding pronunciation.

The room became dark.

Strawberry is my favorite fruit.