Friendship is an important part of life.

I saw a heron in the park.

A comprehensive reform is necessary to eradicate the root of the problem.

He tried to solve the problem radically.

I bought a new bathing suit.

He never misses a day of martial arts training.

This orrery accurately reproduces the movements of the planets in the solar system.

Ilex aquifolium trees are often used for Christmas decorations.

He is conducting research on superconductivity.

Arthropods are a large group of animals that include insects, spiders, shrimp, and crabs.