My son has started learning taekwondo.

A vi ra hūṃ khaṃ is a Buddhist mantra, believed to have the power to purify the mind.

I used a microscope for a biology experiment.

He left the door of the room wide open.

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 dog is very smart.

I bought a movie ticket.

This sphere is a part of our life.

This apple is too hard to eat.