He is learning the technology of phototypesetting.

This is my new photo album.

He likes to take candid snapshots of daily life.

He is using a drone to take aerial photographs.

An isotope refers to elements with the same atomic number but different numbers of neutrons.

Protozoans are single-celled organisms.

He is majoring in applied mathematics at university.

He is majoring in electrical engineering.

The World Health Organization is working to improve public health worldwide.

Islamic fundamentalism is perceived by some as demanding strict religious norms.