The sine, which is one of the trigonometric functions, represents the ratio of the radius of a circle to the opposite side of a right triangle.

This grave atmosphere reminds us of how important a place we are in.

This solemn atmosphere reminds us of how important a task we are undertaking.

Glycogen is the main way our body stores energy.

He decided to run a marathon to test his limits.

He started hearing auditory hallucinations from stress.

The commoners were envious of the royal family's lifestyle.

He had hallucinations because of his illness.

It is important to calculate the subtrahend accurately.

I could see the beautiful sea from the porthole.