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.

Essential amino acids cannot be produced by the human body, so they need to be obtained from the diet.

My friend is working in the United Arab Emirates.

The German Democratic Republic was once a socialist country.

My dream is to visit the Federal Republic of Germany someday.

The Yemen Arab Republic is a country located in the Middle East.

The Federal Republic of Yugoslavia was once an existing nation.

The Democratic Republic of the Congo is located in the central part of the African continent.