He is my biggest enemy.

What is that target?

He drew his bow aiming at the target.

He drew his bow aiming at the target.

In order to reduce food waste, we should plan our food consumption.

Fundamental interaction is one of the most important forces in physics.

He is an excellent chemist who made many discoveries.

He is an expert in petrochemistry.

It's difficult to decipher this chemical equation.

Understanding chemical equations is difficult.