Spectroscopy is an important means of investigating the properties of matter.

Reverse Polish notation is one method of expressing calculations.

Electromagnetic radiation conveys energy in forms such as light and radio waves.

My four treasures of the study are a fountain pen, a pencil, an eraser, and a ruler.

Higher fatty acids play an important role in our health.

This food is rich in higher fatty acids.

We are focusing on the research and development of new products.

He believes in the geocentric theory.

He has a wealth of knowledge about the zodiac.

The atmosphere of the meeting has grown tense.