Ricin is a very dangerous poison.

Lysine is one of the essential amino acids necessary for our body.

This bottle contains poison.

This road is dangerous, so please be careful.

Please avoid this road because it's dangerous.

It is a very beautiful view.

I was amazed at his extraordinary talent.

Please press this button in case of emergency.

He is an expert in toxicology and conducts many studies.

This lake is known as a dangerous body of water.