Unsaturated fatty acids are said to be good for health.

Free fatty acids are used as an energy source in the body.

Essential fatty acids are vital nutrients for our health.

He is a genius, but even experts sometimes make mistakes. He also makes mistakes sometimes.

A binary operator is one of the basic concepts in algebra.

In order to solve this problem, first, we need to divide the whole into several parts.

The pupil of her eyes was a deep blue, like the sea.

She was spinning thread on a spinning wheel.

The roof of this house is made of thatch.

My younger brother caught the influenza.